Sailor Moon - Ami Mizuno / Characters

This page covers Ami Mizuno from Sailor Moon.

Ami Mizuno/Amy — Sailor Mercury

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^{Click to see Ami Mizuno.}

Voiced by: Aya Hisakawa (first anime), Hisako Kanemoto (Crystal onwards) (Japanese), Karen Bernstein (DiC), Liza Balkan (Cloverway), Kate Higgins (Viz) (English) ^{Foreign VAs}
Portrayed in PGSM by: Rika Izumi
Portrayed in the musicals by: Ayako Morino, Yukiko Miyagawa, Hisano Akamine, Mariya Izawa, Chieko Kawabe, Manami Wakayama, Miyabi Matsuura, Momoyo Koyama

THE Shy Blue-Haired Girl

"Guardian of Water and Knowledge, the pretty sailor suited soldier Sailor Mercury! Douse yourself in water, and repent!"

Ami, the first Sailor Guardian to join Sailor Moon in her fight, is a kind but insecure prodigy renowned for her genius intellect. Although she's timid and tends to obsess over her grades, she's a loyal friend and a worthy addition to the team. Her sharp mind and analytical abilities make her the strategist of Sailor Moon's inner soldiers.

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A-E

Abnormal Allergy: She's allergic to love letters, but it only comes up in one of the side stories, "Ami's First Love".
Aborted Arc: When Ami plays the Sailor V game for the first time she goes into a kind of trance, with the manga even showing faint numbers behind her eyes. This was meant to foreshadow a reveal that Ami was actually a cyborg before Naoko Takeuchi dropped the idea. Oddly enough, this "trance" was kept in the Crystal version.
Academic Alpha Bitch:
- Unbelievable, but true. It's usually mistaken for her trying to help her fellow Soldiers, but the Exam Battles specials showed her being particularly aggressive in trying to force the others into studying and really happy when she mistook the Monster of the Week for the boy who regularly matched her grades, as it meant she had an excuse to murder him (Minako promptly declared she wouldn't study hard to avoid being murdered by her, to which Artemis said he doesn't expect Ami to feel threatened by Minako's grades).
- Also seen in the anime when she's more concerned about Chibi-Usa studying with her until 11:00 at night rather than the 9-year-old girl getting a proper amount of sleep.
Academic Athlete: Other than being a brilliant student, she's also a good swimmer.
Accent Adaptation: In the DiC dubs, she talks with an accent that makes her sound like she's from the classier parts of New England.
Achilles in His Tent: Ami is prone to the more benevolent versions of the standard plot; she starts as the only Guardian without offensive abilities and is too nice to storm off. Instead, she's offered a chance to study abroad and further her goals of becoming a doctor, which will remove her from the Guardians. She's about to take it but changed her mind at the last moment so returns in time to get her mid-season power upgrade (which finally makes her more action-geared) and rescue the rest of the team from a monster only weak to ice, and she returns to the fold. Later in the season, she's attacked by a monster that causes paranoia and self-doubt, and she hallucinates that everything everyone says to her is derisive and mean. Eventually, her faith that her friends would never say such horrible things allows her to break the spell and come back to everyone.
Adaptation Dye-Job:
- The '90s anime and its promotional material could never seem to settle on whether Ami's hair was blue or green. This might be because of Green Is Blue.
- She has red hair in the failed Toon Makers’ Sailor Moon pilot.
Adaptational Nice Guy: As mentioned above, is arguably the nicest of the guardians in the 90s anime, but is a bit of an asocial Academic Alpha Bitch in the manga.
Adaptational Sexuality: In the manga, Ami was Allergic to Love and uninterested in romance. In the anime, apart from the "Ami-chan's First Love" special, Ami was shy, but had no issue flirting with boys and was somewhat of a Covert Pervert.
Adaptational Wimp: In season 1 of the anime, she infamously had no offensive abilities. This was later done away with by giving Mercury an upgraded attacking move a bit before the rest of the Sailor Guardians.
Allergic to Love: Along with other much more extreme and neurotic behaviors, Ami reacts to getting a love letter by breaking out in hives in the "Ami-chan's First Love" manga side-story/SuperS anime short. There's some Early-Installment Weirdness, since the manga originally implied she had a crush on Motoki, like Usagi and Makoto. The anime version creates an Adaptation-Induced Plot Hole, as The '90s anime continuity sees her in a relationship with Canon Foreigner Ryo Urawa, with no indication of a love phobia. The episode with the Princess Seminar also contains a unique aversion as she's seen ballroom dancing with a boy without any reservations. In a later episode, she confesses to Shingo, who has a crush on her, an interest in marriage and children, and end of the episode can be seen as a Maybe Ever After for them.
Alliterative Name: She was called Amy Anderson in the DiC dub.
All of the Other Reindeer: Her extreme intelligence and crippling shyness caused her peers to assume she was a snob who looked down on them.
Always Someone Better: She had two. One turned out to have psychic powers from his Rainbow Crystal and later became a love interest. The other was exclusive to her side story "Ami's First Love". Mercurius was more like her equal as they got the same grades, but for some reason, he was always mentioned first at the list.
Amusing Injuries: Yes, even Ami wasn't immune to this. In the Makaiju arc of the anime, after getting Makoto out of a daydream, Ami was slapped on the back hard enough to send her to the ground and leave a red hand-print on her clothes (though this may indicate that the situation was being Played for Laughs).
Animal Motifs: Cats. They are listed in her bio as her favorite animal, fitting her kindness and introversion. She grows a strong bond with Luna.
Awesomeness by Analysis: She pulls this off frequently both in and out of her civilian guise. Case in point, in her debut chapter, she gets the top score on an arcade game she has never played before, simply by calculating the game's AI patterns after watching Usagi play it once.
Badass Adorable: Her sweetness can't be denied. As for the badass part, she is a Guardian who can manipulate ice and water and summon foggy mists as distractions, proving herself a great asset to the Sailor team.
Badass Bookworm: The obvious brains of the team in every iteration.
Barely-Changed Dub Name: The original English dub changed her name from Ami to Amy, which looks very similar but is pronounced differently.
Barrier Maiden: Her future self in Crystal Tokyo.
Beware the Nice Ones: "Ami's First Love" is a good example of this, with her turning into a Academic Alpha Bitch and hoping that the demon was her academic rival so that she'd get to kill him. Also, in PGSM, she turns into a Dark Magical Girl because she felt unneeded by the Guardians, and nearly killed Sailor Moon.
Beware the Quiet Ones: She's the shyest and quietest of Usagi's inner circle, but she's no slouch in battle. Her initial powers were mostly supportive, but still key to battles, and once she started getting power-ups, she could easily take on monsters single-handedly. And if you threaten her friends or a small child, she will not hold back.
The B Grade: This is Ami's great fear. Aliens coming to take all the energy out of their bodies? Ami's on it. Yandere not quite over the heroine's Love Interest and will stop at nothing to Murder the Hypotenuse? Not a problem. Mad Oracle from the future manipulating a prince into doing his bidding, and eventually goes after Crystal Tokyo's princess? No problem. An A-minus on her final? Ami's crushed.
Big Damn Heroes: In episode 8 of Crystal, Moon, Mercury, Mars and Jupiter show up in time to aid Venus against Kunzite.
Big Fancy House: In the manga, she brings her friends home to a place they immediately call an example of a millionaire's home, with a marble foyer she tells them not to worry about when it accidentally gets cracked. While the first anime and the live-action series don't play this up as much, her mother remains a doctor in all versions, the ostensible source of the wealth.
Big Sister Instinct: She usually tries to rebuke Rei whenever the latter is being too harsh to Usagi. Unfortunately, Rei always tries to make her reconsider.
Birds of a Feather: Apart from Usagi and Chibi-Usa, she's the Sailor Guardian Mamoru is closest to, as he's a Big Brother Mentor to her. She's also the Guardian he has the most in common with. Both are serious, intellectual geniuses, are not very social, want to be doctors, and wear unnecessary reading glasses. This partly why they've been shipped in fandom.
Blue Is Calm: Ami's signature color is blue, befitting her calm, quiet, and intelligent personality.
Blue Means Cold: Some of her later attacks use ice, and she wears a blue outfit.
Blue Means Smart One: Ami is the blue member of the Inner Sailor Guardians. She serves as The Smart Girl of the team, as she is highly intelligent and can also use a scanning visor to get information and a handheld supercomputer to calculate more information.
Book Smart: One of the most well-known anime examples. She's so smart that she's often referred to as one of the best students of the country.
Boring, but Practical: Her original powers. Early on, all she could do was distract the enemy and study the battle situation with her Magitek. Not as flashy and combative as the other girls' abilities, but it still made the battle easier and let her find a youma's weakness so the others could finish it off.
Brains Versus Brawn: The brains to Haruka's brawn. While Ami is a genius with an IQ of 300 and the best test scores in school and prefers to carefully analyze her enemies before attacking, Haruka is a physically strong athlete who fights with a sword and charges into battle like there's no tomorrow. The contrast between these two is most explored in the Nehellenia arc of the last season.
Brainwashed: Unlike prior versions, in Act 2 of Sailor Moon Crystal, Ami is brainwashed by the Dark Kingdom's Crystal Disk program into expending her cognitive energies in their service, though it doesn't fully take due to Ami recognizing that her friend Usagi is in distress, and snapping out of it.
Brainwashed and Crazy:
- Dark Sailor Mercury in PGSM.
- Also in an R episode, she's temporarily turned against her friends when a Droid makes her think her friends hate her for being a nerd.
Broken Ace: Initially. She was an extremely intelligent student, but also a Lonely Rich Kid with no friends and disliked by her peers because they thought she was an Insufferable Genius, when in reality she was too shy to approach anyone until Usagi started talking to her.
Bubble Gun: Her first attack Shabon Spray was basically a blast of bubbles that were only good as a distraction.
By the Power of Grayskull!: "Mercury power, make up!", "Mercury star power, make up!", "Mercury planet power, make up!" (manga) "Mercury crystal power, make up!"
Captain Obvious: To some extent. The original dub rolled with this and made her a little too redundant in her dialogue:
Amy: This is a portal inside a warped space...that leads to...yet another space!
Career Versus Man: She discusses this at one point. She tells Shingo, who has a crush on her by this point, that being a doctor is only one of her dreams. Since Ami only has her mother, she wants to have a family someday, and if the right man came along, she might give up her medical ambitions for that. In Parallel Sailor Moon, though, she averts this because she is a wife, a mother and a practicing doctor.
Cartoon Creature: Not Ami herself but her costume in the episode where the characters dress as animals for a play. Rei is dressed as a bear, Makoto a gorilla, Minako a fox, Naru a rabbit, and Umino an elephant, but Ami's costume is harder to figure out. It's vaguely bear-shaped but with a large, puffy tail and what appears to be an oversized belly button.
Character Development: She starts out as a shy loner who puts all her effort into schoolwork, but as soon as she meets Usagi, she learns to come out of her shell, becoming more confident, sociable, and a more rounded individual. In one episode, a character notes how Ami looks happier and more at peace compared to her past self. Ami credits having made wonderful friends who helped with her development.
Clothing Damage: In episode 27, Urawa has a horrible nightmare about Ami, as Sailor Mercury, being attacked — but the only thing that gets damaged is her uniform, which, by the end of the vision, is just a few perfectly positioned scraps over her naughty bits that are slowly disappearing as it ends.
Compulsory School Age: Has the highest test scores in the country, yet she not only attends the same grade as students her age, and she spends most of her time out of class in cram school. What in the world she would actually learn from it or which high school's entrance exam she couldn't already pass is anyone's guess.
Cool Sword: The Mercury Sword, featured in the live-action.
Corner of Woe: In the episode where she's accused of cheating on her exams, the pressure and taunts of her classmates drive her into an alley where she covers her ears.
Covert Pervert: While she's involved in very few romantic subplots of her own, she's always very aware of everyone else's:
- When most of the inner soldiers are perplexed and put off by Haruka and Michiru's relationship, she completely understands what's going on.
- There's a famous scene where, when the soldiers see Seiya wearing only a towel, she can be seen peeking through her hands.
- She was the 27th person to join the very overzealous Starlights fan club, far ahead of Minako and Rei (who both have idol obsessions). The other Sailor Soldiers are shocked when they learn this as she presents her membership card, which is gold and sparkling.
- When she joins Minako in trying to ask Chibi-Usa about her mysterious "friend" (Pegasus), Ami misconstrues the younger girl's description to mean something which makes her blush and she can't say out loud.
- Further, in Sailor Moon R: The Movie, she's first to suggest a homosexual relationship between Mamoru and Fiore, to which Rei actually calls her a pervert.
Curtains Match the Window: Blue hair and matching blue eyes.
Custom Uniform: In Crystal:
- Ami wears a grey sweater over her school uniform, which serves to make her look slightly more modest and reserved as compared to her classmates.
- Her and Setsuna's uniforms are sleeveless, while all of the other girls have short padded sleeves.
Cute Bookworm: She's shy, adorable, and a real sweetheart who is very smart and studious.
The Cutie: She's a sweetheart and pretty adorable.
Dark Magical Girl: Only in the live-action where she turns into Dark Sailor Mercury.
Destroy the Security Camera: She does this to a camera she notices when she's investigating Mugen Academy in the Infinity Arc of the manga, by throwing a pen at it like a dart.
Disabled in the Adaptation: In the failed Toon Makers’ Sailor Moon pilot, Ami uses a wheelchair. In the manga and other adaptations, she is able-bodied.
Does Not Like Spam: Does not like hamachi fish.
Doppelgänger Spin: In episode 16 of Crystal, she uses this against Berthier. It doesn't work.
Early-Bird Cameo: The end of Crystal Act 1 shows Ami's fleeing the rain away from the camera.
Elemental Hair Colors: Her blue hair perfectly matches her water and ice affinities.
Embarrassing Hobby: Ami has a secret love for romance novels and pop culture but is too embarrassed to admit this. This is probably just because she's shy, since she has friends who are into that stuff too.
Empty Eyes: In Act 2 of Crystal, a brainwashed Ami's eyes go from a deep-sea blue to a matte, dull deep green with dilated, obscured pupils under the influence of the Crystal Disk, a magical CD meant to enslave the user, disguised as a Cram School study aid.
Enemy Scan: She's the "look before she leaps" type, analyzing the enemy and then taking action. She even has a special visor that no one seems to have an equivalent power for.
Everything Sensor: Sailor Mercury's mini-computer could zero in on pretty much anything you'd call phlebotinum. It came in handy less often than you'd think.
Evil Costume Switch: Live-action only. She gets brainwashed and turns into an evil version called Dark Mercury; Moon manages to bring her back, though. She still almost kills her and only snaps out of it when she has already injured Moon.
Extreme Doormat: Especially in the first season of the '90s anime, Rei forces her to say or do things she doesn't want to do or is very reluctant, typically against Usagi. She knows Ami lacks confidence and is too meek to protest.

F-M

Fangirl:
- In Pretty Guardian Sailor Moon, she and the others are fangirls of Aino Minako, an Idol Singer who also turns out to be Sailor Venus.
- In the original anime, she's revealed to be a fan club member of the Three Lights. In fact, her member number is significantly lower than any of the other girls.
Fatal Attractor: Shall we make a list?
- In the first season of the anime, she has a love interest in Ryo, whose Secret-Keeper status made it seem like he'd be perfect for her. Unfortunately, he turns into the monster of the week, and despite the mutual attraction, he always ends up leaving her (him being a Seer and The Fatalist may have something to do with the latter).
- Depending on the version, she's had a love interest in either Zoisite (in the manga and Crystal) or Nephrite (in the live-action). They're both members of the Shitennou, so they're the enemy, and both die in the end (although Nephrite gets better in the live-action).
- Tiger's Eye, who was also an enemy, once tried to hit on her in the 90s anime, but it was just another Honey Trap of his, so it meant nothing to him, and this time, Ami was having none of it.
- In Ami's First Love, someone sends her a love letter. It's never revealed who wrote it, but whoever the admirer is, they end up giving her hives and a panic attack by writing the letter.
- Finally, in the last season, she seems to be attracted to Taiki, but their ideals and personalities always seem to clash, and Taiki's not looking for a relationship, so nothing ever comes of it. Plus, Taiki is an alien who goes back to her home planet at the end of the season.
- Ami does get a Maybe Ever After moment with Usagi's brother Shingo, though, so it's not all bad.
Ferris Wheel Date Moment: Ryo invites her to go on a Ferris wheel with her in one episode.
Flanderization: Sailor Moon R felt the need to give it a bump to the point where she can't seem to go most episodes without mentioning the need to study. Though given the fact that the girls are studying to pass their high school entrance exams, this can be somewhat understood.
Fog of Doom: Mercury can produce this with her Mercury Aqua Mist attack (Sabão Spray in The '90s anime), producing a concealing fog that gives comrades an opening to attack an enemy unawares.
Foil:
- In the '90s anime, to Rei. Both are intelligent, hardworking, ambitious, and are simultaneously looked down upon and envied by fellow students. While Ami uses water, has a mostly defensive fighting style, and studies her enemy before attacking, Rei uses fire, is very aggressive in combat, and charges in (though she shows restraint at times) to a fight guns blazing. Ami is blue-themed, while Rei is red-themed. While Ami is soft-spoken, shy, sweet, wants others to like her, and easily takes to Usagi, Rei is fiery, headstrong, abrasive, pretends she doesn’t care about others’ opinions, and butts heads with Usagi constantly.
- To Haruka, which is explored in the Nehellenia arc of the Stars season. While Ami is the brains of the inner guardians, and insists on studying an enemy before attacking, Haruka is the brawn of the Outer Guardians, and tries to plow through hordes of enemies with brute force. Ami is ladylike, gentle, idealistic, insecure, and wants to be liked by others, while Haruka is tomboyish, gruff, cynical enough to think that a horrible sacrifice is necessary to preserve peace, appears very confident, and genuinely does not care whether others accept her or not.
Following in Relative's Footsteps: Ami dreams of following in her mother's footsteps and becoming a doctor like her.
Food Shove Gag: Ami does this to Luna in episode 91, when Luna starts to voice objections to adopting the kittens that the Guardians have found.
Forgotten Phlebotinum: In the fifth episode, Protect the Pure Heart! A Three-Way Battle, Ami uses her mini supercomputer to track Unazuki's Pure Heart Crystal after it had been stolen from her. Ami doesn't use her supercomputer again after this episode, in spite of how useful it could have been in tracking the Talismans.
Friendly Rivalry: With Michiru. They're both excellent swimmers who enjoy competing against each other, but except for the time Michiru called out Ami for letting her win a race, they get along reasonably at swim meets.
Gamer Chick: Is actually the supreme player of video games due to her Awesomeness by Analysis. After seeing the game played once, she could flawlessly memorize and defeat the AI's patterns.
Genius Cripple: In the failed Toon Makers’ Sailor Moon pilot, Ami is one in the wheelchair.
Girly Girl with a Tomboy Streak: She is always demure, shy, polite, soft-spoken, and ladylike, and even receives a Girliness Upgrade in the live-action. She also enjoys swimming, has Boyish Short Hair, is good at video games, and in one episode she can fix a car.
The Glasses Gotta Go: In Crystal, hers get knocked off shortly before she turns into Sailor Mercury for the first time.
Godlike Gamer: In her debut episode, Ami got the top score on an arcade game she has never played before, simply by watching Usagi play it once.
Go-Getter Girl: She tries very hard to be good at everything in school.
Goggles Do Something Unusual: They're able to scan the enemy and work in conjunction with her mini-computer. Also they can release a fog in the manga. They're activated by touching her earring, and can even make a headset mic appear.
Good Is Not Soft: She is a kind girl, but that doesn't mean that she can't be resourceful in fights and get angry at enemies.
Graceful Loser: After Ryo beats her score, Ami isn't upset about being in second place for her test exam and just sees it as a sign to study harder. This is an Adaptation-Induced Plot Hole, since in the manga, she is a bit of an Academic Alpha Bitch who won't even stand for tying for first place.
Gratuitous German: Her handheld computer has a German setting, and she speaks the language surprisingly well.
Handicapped Badass: In the failed Toon Makers’ Sailor Moon pilot, she uses a wheelchair that flies and shoots weapons, which lets her fight and travel in space with the others.
Harp of Femininity: Played with. She actually uses a lyre as an Instrument of Murder, but she's still more of a Lady of War.
Heroes Prefer Swords: In the live-action, the Guardians receive the "Sailor Star Tambourines" which turn into weapons. Hers is a sword.
Hidden Depths: The shy, studious bookworm Ami almost appears to have no other hobbies outside of studying/reading. That said, she is an avid and talented gamer, can write lyrics for an instrumental piece of music, and knows how to fix a car. Not to mention that she can be quite the disciplinarian when it comes to getting the girls to study more.
"I Can't Look!" Gesture: Is shown to cover or at least avert her eyes when seeing something indecent (Usagi and Mamoru kissing, a nearly naked Seiya about to lose his towel). She often allows herself a tiny peek, however.
Ice Magic Is Water: Her attacks have included not only water and ice, but even bubbles and mist. This helps differentiate her from Sailor Neptune, who had ocean-based water powers.
An Ice Person: In later arcs of the story she adds some ice-based attacks to her repertoire to help differentiate herself from Neptune, who controls the oceans.
Idiot Ball:
- On the "Snow White Play" episode of the original anime, she decides to inform everyone in the stage that "[she's] the one with the highest grades on the national exams, Sailor Mercury!" Good thing no one pays attention.
- In Ami's First Love, she gets hit with this when she obsesses over the idea that Mercurius is her rival, impulsively deciding that he must be the villain of the week who must be eliminated at all costs. Without one bit of evidence. She could have saved herself a lot of trouble if she used her head and thought of asking around about Mercurius.
I Just Want to Have Friends: Because she was shy and people mistook her for an Insufferable Genius, she was lonely before she met Usagi. But they became fast friends, and that was just the beginning.
Improbably High I.Q.: She's rumored to have an IQ of around 300 by her fellow classmates. The Musicals on the other hand present this as fact. In the new Viz dub, Umino claims that it's over nine thousand![[Invoked]]
Improvised Weapon: Is dead to rights against the DD Girls in Sailor Moon Classic's season finale. Making the most of her last seconds, she decides to make an impact in a way her usage of Bubble Spray can't: by bashing her super computer corner first into the forehead of the DD Girl creating illusions, breaking the crystal source of her illusions.
"I guess now's the last time I'll be using this."
Innocent Blue Eyes: Blue hair, blue eyes, and a kind personality.
Innocently Insensitive: Implied in the S season of the anime. Michiru and Ami participate in a swimming race, and Michiru senses that Ami was trying to let her win. Michiru calls Ami out on her accidentally condescending behaviour, driving the latter to tears.
Instant Expert: At video games. In the original series she gets the all-time high score on the Sailor V arcade game on her first try. In the Stars series, she wins a fighting game tournament (again, on her first try) just to give the team a chance to speak with Taiki to clear up a misunderstanding.
Intelligence Equals Isolation: Before meeting Usagi. Her school peers mistook her shyness for arrogance and refused to approach her.
In the Name of the Moon: "For love and intellect, I am a sailor-suited pretty soldier: Sailor Mercury! In the name of Mercury, soak your head in water and reflect on yourself!"
Introverted Cat Person: She's shy, doesn't make friends easily, and cats are her favorite animal.
Japanese Ranguage: In one episode, it's shown that while her academic knowledge of English is flawless, she can't really pronounce it properly.
Kid-Appeal Character: Of the Teen Genius variety. At one point, Japanese fans voted her the most popular character before Chibi-Usa surpassed her in popularity.
Kindhearted Cat Lover: This is the very reason we know she isn't as unfriendly and arrogant as her reputation says: when Luna approaches her, Ami reacts quite warmly. Later on, she's often seen petting and hugging Luna, with whom she seems to have a particularly close friendship, and her bio outright states that cats are her favorite animal.
Lady And A Scholar: While she has initially a reputation for being an Insufferable Genius, it's just because because her peers mistook her shyness for arrogance. She's actually the complete opposite of an Insufferable Genius: instead of being arrogant and condescending, her only real flaw is her lack of self-esteem. Once you get to know her, she's modest, sweet, and gentle to a fault and would never look down on people who aren't as smart as her.
Lady of War: She becomes this after gaining her water blast attacks and going Musical Assassin with Mercury Aqua Rhapsody.
Like Mother, Like Daughter: Ami gets a lot of her personality traits from her mother. She inherited her intelligence, work ethic, go-getter attitude, and somewhat distant behavior from her, as well as her choice of career (though that one is more about wanting to follow in her footsteps).
Literal-Minded: In the live-action, where she doesn't understand sarcasm or social cues.
Lonely Rich Kid: More in the manga and live-action. Her single mother is a high-ranking doctor at her hospital and has to work very late hours, so Ami has been a latch-key kid most of her life.
Loner-Turned-Friend: Until befriending the other Sailors, she had a hard time making friends because others thought her inherent shyness was her being snobby.
Loony Friends Improve Your Personality: Ami was originally a timid loner who spent all her time studying. Hanging around with Usagi, a Book Dumb and fun-loving Loon with a Heart of Gold, helped her come out of her shell, boosted her confidence, and taught her that it's okay to loosen up and have fun once in a while. All the girls helped her to grow in one way or another, but Usagi probably had the biggest impact.
Luminescent Blush: Does this a lot because she's so shy, like when Usagi acts so affectionate to her and becomes her first friend.
Magical Computer: Owns one as part of her identity as Sailor Mercury, disguised as a compact. It vanishes when not needed and can detect all kinds of things. In the manga, though, it turns out to be just an interface for the actual supercomputer on the moon.
Magitek: Her visor and Magical Computer.
Making a Splash: A water user. Though in later arcs she dabbles in ice to differentiate herself from Neptune.
Mama Bear: Mercury is so pissed when a monster goes after babies that she gains a new power out of sheer anger and willpower.
Maybe Ever After: Her Ship Tease with Shingo ends more positively than most ship teases for the Inners, since he doesn't leave, die, break Ami's heart or give her hives, and the two are seen enjoying the fireworks together at the end.
Meaningful Name: The characters used to write "Ami" can be read as "Asian beauty," and the "Mizu" in "Mizuno" means "water."
Memento MacGuffin: In Sailor Moon Crystal, since Usagi is her first friend ever, Ami rapidly becomes very attached to the pen she won on their first outing together at the Video Arcade, well before she knows it to be her Transformation Trinket. While Brainwashed, she's oblivious to orders from the Monster of the Week as she staggers to retrieve it from across a room, dull-eyed but sighing happily when she does.
Mistaken for Spies: The 90s anime has her first being mistaken as an agent of Queen Beryl's before she is revealed to be Sailor Mercury.
Mind-Control Eyes: Of the more traditional blank Empty Eyes in Act 2 of Crystal while under the Dark Kingdom's brainwashing program.
Mission Control: Early on, since her only attack was only a distraction, she was more inclined to use her visor and computer to provide support and information to her teammates.
Misunderstood Loner with a Heart of Gold: Ami was thought by everyone as being an arrogant know-it-all due to her high grades and habit of keeping to herself. Usagi gets to know her and realizes she's anything but; while she is very smart and studious, she's just shy and doesn't know how to make friends.
Mouthful of Pi: If you play her in the Sega Genesis video game, she starts off the second level beginning to recite pi before Luna interrupts her.
Mundane Utility: Since her Transformation Pen is just that, a pen, what do you think a bookworm would do with it in her off-time?
Musical Assassin: When she uses her Mercury Aqua Rhapsody which takes the form of a water harp.

N-W

Nerds Are Sexy: She is somewhat popular among her peers for her looks and brains. She got a love letter in a side story, but she didn't react very well to it. This is more present in the anime.
Nerds Love Tough Schoolwork: It's justified in her case, as she wants to become a doctor and has to do the best in school that she can.
New Transfer Student: DiC dubs only of the first anime. In the original Japanese, she was already at Usagi's school, just in a different class.
Nice Girl: One of her more defining traits. She is usually the most patient of the inner soldiers, and always willing to help the people around her in any way she can. That said, Beware the Nice Ones is definitely in effect.
No-Sell: In Crystal, her Doppelgänger Spin doesn't work against Berthier.
Not So Above It All: Mostly in the anime.
- Ami is typically the most mature and responsible of the girls. When they all go to a dance with some English exchange students (French in The '90s English dub), all of the other girls want to dance with Haruka. When Usagi gets the first dance, Makoto, Rei and Minako start playing Rock-Paper-Scissors to see who gets the next dance. When Usagi is finished dancing, we see in the background that the girls are still playing Rock–Paper–Scissors. And Ami has now joined in.
- The infamous Snow White episode has the girls arguing over who should play the lead role. Ami believes that she could play the role since Snow White only has a few lines and even begs to at one point. The next few scenes then have her and the other girls arguing with each other, culminating with all of them, including Ami yelling at both Umino and Naru for intervening.
- There's also another episode where she surprisingly agrees to stop studying for the day so they can all go down to a film shoot and ogle a famous movie star. She needs very little persuasion.
- There's the episode in S where Makoto goes out of town to train. The girls decide to pay a visit to cheer her on. But there also happens to be a resort hotel with a pool nearby. Minako reveals she brought a swimsuit for the occasion. Rei reveals she brought one also, as does Usagi. Luna and Artemis moan that Ami seems to be the only one who only came to cheer on Makoto — until she sheepishly admits she brought her swimsuit, too. In the same episode, after Rei, Usagi and Minako start throwing pillows around in an argument, a stray pillow hits Ami in the face, and she escalates it into a full pillow fight.
- And in the Season 1 finale, the other girls are talking about how they plan to have full-blown romances when the Big Bad is defeated. Ami — who's the least boy-crazy of them — remarks that she might get a boyfriend too. Cue everyone gawking at her and a Luminescent Blush.
- In Stars the girls run across a handsome young man and a short towel that leaves all the girls shocked, and Ami seems to be peeking between her face-covering hands.
Odd Friendship: With Usagi. They're complete polar opposites (Usagi's carefree and extroverted, Ami's shy and studious), but Usagi is Ami's first real friend, and as the first two Guardians, their friendship becomes the start of something big.
Only Sane Woman: Mostly in the anime, which veers more into Dysfunction Junction and exaggerated character types. In the manga, everyone is far more subdued, so she doesn't invoke this as much.
Orange/Blue Contrast: With Minako, fitting their opposite personalities. Ami, who primarily wears blue, is shy, quiet, and studious, while Minako, who primarily wears orange, is a goofy and Book Dumb Genki Girl.
Pair the Smart Ones: In the '90s anime, most of her Ship Teases are with geniuses like her, such as Ryo, Shingo, or Taiki. Even Mamoru has been seen by some fans as better matched with her than Usagi. And in Ami's First Love, her friends think that Ami has a crush on her biggest academic competition, although she insists that her obsession with him is rivalry, not love.
Personality Powers: She controls ice and water and is calm and intellectual.
Promoted to Love Interest: In the original anime, Shingo has a crush on Ami. In the manga, he's a very minor character who never really interacts with anyone outside of his family.
Purely Aesthetic Glasses: She often wears "reading glasses", even though she doesn't need them.
The Quiet One: The least talkative of the Sailors.
Red Oni, Blue Oni: In the original anime, where she and Rei are foils to each other, she's the blue to Rei's red (appropriately colored).
Renaissance Man: She's demonstrated proficiency at both CPR and mouth-to-mouth. She also has demonstrated fluency in both English and German. She is a top-ranked chess player, able to compete against chess masters three times her age. Also, she is capable of fixing a car. She is able to swim at least as well as Michiru, and actually held back to avoid offending her. She has, on occasion, written lyrics for instrumental music she likes. Also she fights monsters in her spare time.
Reused Character Design: Ami is the spitting image of Rena Kuramitsu from Takeuchi's short story, "Miss Rain".
Satiating Sandwich: She loves sandwiches because she can eat them while reading or using a computer.
Second Place Is for Losers:
- In one anime episode, she's accused of cheating. That doesn't bother her nearly as much as getting a single question wrong and missing out on a perfect score.
- In the manga, when Taiki beats her in a test, she's seen angrily ripping her paper and joining Haruka and Michiru in distrusting the Three Lights.
Shaped Like Itself: She uses "Mercury" as her alias for the mock exams she takes in Ami's First Love.
Ship Tease: For a shy Allergic to Love girl, she certainly has a lot of possible love interests. The manga hints at a relationship between the Inners and the Shitennou, including Ami/Zoicite. In the live-action, though, Nephrite is ironically the one who has her eye. In the anime, Ryo is shown to have feelings for her and doesn't give her allergy to love, though he leaves early on. She and Makoto are also very close and even share a romantic-looking dance at one point. Usagi's brother Shingo develops a crush on her later in the series, she clearly cares about him and the end of the episode serves as a Maybe Ever After. Finally, she's the one who interacts the most with Taiki and the one with whom Taiki has the most in common.invoked
Shrinking Violet: She's very quiet and withdrawn until she meets Usagi.
Shy Blue-Haired Girl: Probably the best-known example of this trope. Upon her introduction, she's the aloof genius girl rumored to have an IQ of 300 (and is, in fact, at the top of the rankings in exams for the entire country). Upon actually revealing her character, it's also revealed she's not aloof, just shy, and because she's so smart, other people stay away from her instead of the other way around. Befriending Usagi and the others helps her come out of her shell. In one episode of R, she notes how she used to be alone but now has many friends.
Silk Hiding Steel: Ami starts out as a really smart Shy Blue-Haired Girl, but she takes a beating plenty of times in the series, and when she's determined enough, she can take out a monster single-handedly.
Skewed Priorities: Sometimes, she puts studying before saving the world from destruction.
Sleeves Are for Wimps: Base-form Sailor Mercury's outfit is sleeveless in the manga and Crystal.
The Smart Girl: Stated to have an IQ of 300, she contributes most with her powers of observation.
Smart People Play Chess: She's Japan's junior chess champion, which becomes relevant when she plays against Berthier and the daimoness U-Ikasaman.
Smart People Speak the Queen's English: The DiC dub gave her an accent that sounds like she's from the classier parts of New England.
Smart People Wear Glasses: She's The Smart Girl and sometimes wears reading glasses.
The Smurfette Principle: In the manga she laments at being the only girl in the computer club she joins in high school.
Spectacular Spinning: Her Shine Aqua Illusion attack.
Spoiled Sweet: She's the daughter of a doctor, lives in a large house, and can casually brush off one of her mother's diamonds being smashed. Her mother is both rich enough and kind enough to give her whatever she asks for. Ami is still a compassionate, friendly, polite girl who wants to follow in her mother's footsteps and help people.
Straight Man: Mainly in the first anime, which was more comedic, when Mamoru was not around. While she's sometimes Not So Above It All, Ami would usually play the straight man to balance out the antics of the other girls.
Strong Family Resemblance: Ami gets most of her looks from her mother, including her short blue hair and blue eyes.
Sudden Name Change: In the original English dub, her last name was originally Anderson but later Mizuno (because the dub switched companies). Some fans have theorized that since her parents are divorced, one parent has the last name Anderson and the other Mizuno.
Super Wheelchair: In the failed Toon Makers’ Sailor Moon pilot, she gets a highly advanced wheelchair that flies in space and fires what looks like lasers.
Support Party Member: In the Dark Kingdom arc. Her only attack back them was only useful to distract or confuse the enemy, but her intelligence and Magitek let her help the team by analyzing things until she got better attacks. As the girls started showing up, they established a system: Rei and Makoto would deal damage to the Youma, Usagi would finish it off, and Ami would mostly provide support.
Suspiciously Specific Denial: She and Makoto once assured Rei that they were not late to battle because Usagi was playing video games.
Taken for Granite: In the princess training episode, Ami and Makoto pass the princess test with flying colors, but the person behind it revealed herself to be a youma who turns them and the other passing students into wax statues.
Take That, Audience!: The first page from the "Ami's First Love" manga has her saying: "Stop reading manga and begin studying!"
Tareme Eyes: Reflect her docile and sweet nature.
Techno Wizard: A magical girl who makes use of Magitek in battle.
Team Mom: Shares the role with Makoto. Ami is more Closer to Earth than the other girls and often keeps her teammates grounded.
Teen Genius: Ranked as one of the top 3 at her school, and frequently as the top-scoring student in all of Japan.
That One Player: Manages to be this on a game she has never played before, twice. First a platforming game in the original series and then a fighting game at a tournament in the Stars series. She's just that smart.
Theme Naming: All four of her manga attacks contain the word "aqua,"^note with three of the four having "Mercury Aqua."
This Is Unforgivable!: Once when a Monster of the Week in R uses babies as hostages.
Touch Telepathy: In Act 2 of Sailor Moon Crystal, Ami has a sudden, involuntary vision of a palace when she touches her new friend Usagi's hand while handing her pet cat Luna back to her.
Train-Station Goodbye: Ami says goodbye to Ryo this way.
Trademark Favorite Food: According to her, her favorite food is sandwiches, since she can still read while eating them.
Troll: In a rare moment of her cutting loose, she teases Sailor Moon about "not giving up" on Tuxedo Mask when she comments on the good atmosphere between them. In a SuperS episode of the first anime, she prepares to attack a lemure who copies the guardians' attacks, only to profess that she's kidding when the guardians try to stop her.
True Blue Femininity: She's a demure Shrinking Violet who often acts as The Heart to the team — her hair and costume are blue. This is more pronounced in the live-action, where she receives a Girliness Upgrade.
Twice Shy: In the '90s anime only, she meets a similarly shy genius named Ryo Urawa (who also had Psychic Powers). Only the intervention of her friends (and her saving him from his inner great monster) gets them on a date in one episode.
Visual Pun: In one episode near the end of the anime, she enters a video game tournament while dressed up as a classical depiction of the Greek god Hermes (a.k.a. Mercury).
Vocal Evolution: After having played the '90s anime version of Ami in Viz Media's redub for some time prior to its release, Kate Higgins portrays the Crystal version with a more soft-spoken and meek tone at first to help demonstrate how different the two Amis are. By the time of the dub of Eternal, the voice she uses for both Amis are one and the same.
Walking Swimsuit Scene: Not quite to the extent of Michiru, but she loves swimming, so she often appears in one of her various different swimsuits, and she looks very beautiful in them. It's in one of these scenes where Shingo gets a crush on her.
Water Is Blue: Naturally, her fuku is light blue and royal blue.
Water Is Womanly: A demure, kind girl who is the most intelligent of the Sailor Guardians, and uses water attacks as Sailor Mercury. When Sailor Neptune is introduced, to better distinguish her powers she begins using ice attacks.
Weak, but Skilled: Her combat ability is kind of a joke (especially in the first season, where she just makes fog), but she's got highly useful support abilities (such as her computer) and is an excellent strategist as well.
"Well Done, Daughter!" Girl: In the original anime Ami shows signs of this, often comparing herself to her mother and saying she wants to be a doctor like her mother
Wise Beyond Their Years: She is only 14, yet is the most mature of the guardians and always cares about studying even when she doesn't need to. Being a Shrinking Violet who becomes the first of the guardians for Usagi to befriend certainly helps.
Wrench Wench: An episode in the SuperS season of the 90s anime has her helping a woman fix her car.

Characters / Sailor Moon - Ami Mizuno

Ami Mizuno/Amy — Sailor Mercury

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Characters / Sailor Moon - Ami Mizuno

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