General
- Kinji certainly fulfills his role as the Unlucky Everydude and Deadpan Snarker. His quips (especially in the light novels) can give even Kyon a run for his money!
- Any time Shirayuki, the Unlucky Childhood Friend Miko, misunderstands anything that Kinji and Aria do together. And by 'any time', we mean 'all the time'. Kinji being Aria's partner makes it worse because there's more than one definition of "partner".
- Shirayuki provides a lot of golden moments, for that matter. You see your crush naked? Shirayuki's solution: take off your clothes too. You see another girl with your crush? Shirayuki's solution: Bring out your katana.
- Most moments involving Riko are this. The Tease moments she shares with Kinji are quite hilarious.
Anime
- Shirayuki gets the first one in the series, as her attempts not to call Kinji "Kin-chan" when she goes to his house only result on her still saying the word instinctively over and over.
- Mr. Sayonaki's nonchalant explanation about how being killed in action is common in the Butei school, followed by his appreciation that some people in the room will be dead by the end of the year. All with a confident smile. Which is more meaningful than it looks, because he is actually the sadistic villain Vlad.
- Aria's parachute introduction ends up with her and Kinji crashing into the school's storage room. When Kinji wakes up, he finds they have both landed on an empty plinth... with a still unconscious Aria on top of him, shirt ripped open and showing her bra.
- Sensing himself about entering Hysteria mode, Kinki calms down by focusing on the fact that Aria's breasts are in fact quite small. But he doesn't get a break, because after the UZI robots come shooting at them (and after Aria has come to sense and started raining hammerfists on him mistaking him for a pervert), Aria accidentally shoves her chest on his face again while returning fire. And this time he cannot avoid it.
Kinji: They are small, but even so, they are so soft...- Aria's mortified reaction when she discovers HSS!Kinji has snatched her magazine in their brief hand-to-hand scuffle. She even goes up on one leg.
- Boasting her lack of social skills, Aria gives Kinji his belt back right in front of everybody in their classrom, leading them to jump to the most natural conclusion even before Riko starts clowning about them having slept together. Aria then gets angry and starts shooting at the walls and roof while screaming that love is worthless.
- Aria stating, among the reasons why she wants so insistently Kinji to become his partner, that she wants him to show the abilities that allowed him to escape after the battle with the robots. (It is more like he humiliated her before going away, which only adds to it.)
- After her first night on Kinji's house, Aria angrily wakes him up with a Groin Attack while demaning him to hurry to get her breakfast. She even tries to follow it with a stomp, but her body weighs so little that Kinji manages to parry her foot with one hand.
- During the cat retrieval mission in Episode 2, Aria makes Kinji buy her a hamburger and sit on a park to eat. But as Kinji notes, the park she has chosen is full of couples, making them look like another. Her reaction, Luminescent Blush included, is priceless. Kinji even muses to himself that he has found Aria's weakness.
- Then she digs herself deeper by accidentally drinking from Kinji's Coca-Cola in a moment of distraction, causing an Indirect Kiss. This time she is so embarrassed that she punches Kinji.
- Just the fact that Riko asks for dating games in exchange for information. Also the added fact that she is still convinced Kinji and Aria are a couple.
- In Episode 2, the arcade stroll. It starts with Riko pulling a coupon from her Victoria's Secret Compartment right in front of Kinji, and later sees Aria getting a Cuteness Overload over cat plushies.
- During the hijacked plane mission in Episode 5, even after Kinji's and Aria's tender moment about her phobia to thunderstorms, she is still convinced she can handle the hijacking alone, so she tells Kinji to stay at the room. A thunder later, with Aria cowering down on the ground, she asks him to come along.
- When Kinji races to Aria's helicopter and shouts to her that he is willing to become her partner. Aria is so radiant that she literally jumps off of the helicopter on him while screaming "idiot Kinji!". It also counts as a Crowning Moment of Heartwarming.
- Right afterwards, with both of them at his house, Shirayuki comes in katana in hand, having heard that Kinji is living with a girl and concluded that said girl must have "corrupted" him. Cue usual jealous shenanigans.
- In the same scene at the next episode, Shirayuki hears Aria calling Kinji her slave and goes batshit insane, believing they are doing BDSM or something similar... and then admits, to Kinji's chagrin, that she has similar fantasies herself where she is Kinji's slave.
- Shirayuki then learns that Aria and Kinji shared their first kiss and becomes even crazier. Aside from blushing, Aria's response? "D-Don't worry, I-I d-didn't get pregnant!" Turns out Aria thinks getting kissed on the lips turns you pregnant. The line completely deflates the scene, and is followed by Kinji doing a Facepalm and Shirayuki fainting.
- In the light novels Kinji adds his own snarky line. Along the lines of, "What the hell, Holmes family? You didn't even teach your great-granddaughter sex-ed or something?"
- And the following morning. Oh Aria, haven't you learned from Shana that asking how babies are made never turns out well? Reading from a children's book with illustrations adds extra hilarity, bit then turning angry towards Kinji for no reason sells it.
- After hiding on an Air-Vent Passageway, Aria and Kinji are spying on Shirayuki talking to Ms. Tsuzuri about Durandal. Aria then thinks on working as Shirayuki's bodyguard, and promptly shoots her way out of the air duct to proclaim herself so. The best thing in the moment is Ms. Tsuzuri's completely serene reaction at this.
- Jeanne d'Arc, The Ojou and The Ace Expy of Saber, is good at almost everything. 'Almost' because Kinji finds out that Jeanne's drawing is about as good as an elementary school student's.
- In Episode 9, Riko is trying to seduce Kinji in a cosplay room, which gets interrupted when the real Aria enters through the window shouting "Don't steal my slave!" Just a regular day in Aria the Scarlet Ammo.
- After Riko has revealed herself as a traitor in the rooftop meeting, Aria confronts her angrily... and then, instead of fighting, the two start exchanging petty insults, like two bickering highschool besties.
- When they finally get ready to fight, HSS!Kinji intervenes with his characteristical suavity, even putting a finger on Aria's lips to make silence. Aria's reaction is both cute and hilarious.
- Episode 10 is one of those from start to end.
- Riko sets a trap for Kinji, goading him to hide in a closet just before the classroom is going to be used as the girls's dressing room. What does he discover inside the closet, next to him? Mutou, who had voluntarily got there to spy on them, and who naturally assumes Kinji is doing the same. Even better, it is later revealed Mutou had a motorbike hidden under the classroom's window to escape in case he was discovered.
- Kinji then gets aroused when he sees the girls undressing, and he actually starts entering Hysteria mode when he looks at Aria doing the same. He is trying his best to resist, but at that moment, even Aria peeling off her kneesocks is done in an involuntarily sexy motion.
- When Reki opens abruptly the closet, even the suave, worldly HSS!Kinji is heavily sweating at the impending scene.
- In the OVA, Aria going quickly for a Security Cling on Kinji when the ghost traps them in a room. It seems she has a phobia for ghosts as well as storms (though it is understandable in this case).
Light novels
- A definite Funny Moment is the end of Volume 5. In a casual and nonchalant manner, Reki proposes (as in, a marriage proposal) to Kinji, WITH her signature rifle POINTED AT HIM! Naturally, Kinji freaks out.
- Also at the beginning of Volume 6 where Reki gives Kinji a challenge: If Kinji can avoid being hit for more than a minute by Reki's seven attacks, she will retract her proposal. And this is coming from the girl with Improbable Aiming Skills of a 2051 meter range.
- Kinji meeting the Mission Control and Jeanne's best friend Misaki Nakasorachi in person. No wonder the girl's only Rank B. Misaki can't converse with people in person, instead she prefers to talk with them through a device because of her extreme Shrinking Violet tendencies.
- The first half of Volume 8 contains pretty funny moments, such as: Kinji finding out the hard way that one of his allies, a fox girl named Tamamo, wears no undergarments, or an eighteen year old nun who drinks strong liquor inside his house and believes that his older brother (who is a Wholesome Crossdresser) is actually a girl.
- How about the following morning? Aria wakes up in Kinji's room, just the two of them. Seeing the bottles of liquor on the floor, plus a bite mark on her neck (actually a bite from Vlad's daughter Hilda) and a blanket covering her body, Aria goes completely batshit insane on Kinji, believing that he used alcohol so he can do weird things to her. Meanwhile, Kinji is completely oblivious on why she's acting so embarrassed and angry.
- Kinji, wondering what Reki is listening to on her headphones, lifted the headphones off her head. Reki's response? Cue up Firestarter
by The Prodigy on her media player and then max out the volume control, making Kinji nearly go deaf. Seems like Reki doesn't like her headphones being taken off. - And their class Cosplay cafe (also in Volume 8) for the school festival. They draw roles from a cardboard box and can draw twice if they don't like their first draw, but the second draw is absolute. During Aria's turn to draw, she draws first 'Idol'. Aria is close to tears, and Riko, Shirayuki, and even Kinji are stifling chuckles. Aria decides to draw again and what does she get? To quote the light novels:Riko, who shouted that, was rolling around at the feet of Aria, who was restraining herself like she had been frozen solid at the moment she saw the three words, "Elementary School Student", and laughing uncontrollably, she clutched her stomach.Was it that Shirayuki had also reached her limit of tolerance? She had knelt down as if prostrating herself, and leaking a noise of laughter which could not be called a voice, she hit the floor with a thudding noise.I, who stood there shocked at the depths of horror in which Aria's luck resided, also - unintentionally - thought about a elementary school student with sharp eyes, sucking on a lollipop and carrying a red backpack— I laughed, and at that moment, I noticed the killing intent of Aria, who seemed to have snapped.In the middle of my brain, the high-impact song "Firestarter" once again started to stream.
- The announcer in the middle of Episode 6 is pretty funny due to how tired and, frankly, hung-over she sounds.
