Yuta Koizumi is a 14 year old boy who has quite a bit of a problem. The demon princess of the magical world, Lucia, has to procreate with him. The child resulting from that union would have the ability to engulf the entire world in fire for seven whole days. El Mikamoto and Rie Kasukabe are the two angels assigned to make sure that doesn't happen, and Rie Kasukabe also happens to be the girl Yuta likes. Just how is Yuta going to survive this ordeal?
Princess Lucia is a manga by Kouji Seo, author of Suzuka and A Town Where You Live. This was serialized from 2009 to 2015, first running in Monthly Comic Blade before the magazine ceased printing, and then moved to Monthly Comic Garden for the rest of its run.
Princess Lucia provides examples of:
- Absurdly Youthful Father: Yuta is technically the "parent" of the Demon Beasts Children as they call him "daddy". Lucia would fit as well if she wasn't Really 700 Years Old.
- ACME Products: El is always seen shopping at an angel store, though most of the products don't work the way she plans. Though this could be because the one that owns the store is actually a demon and devoted servant to Lucia's family.
- Always in Class One: The protagonists are in 1-A.
- Ambiguously Gay: Mary (revealed to be a guy) states to Yuta he does not have any interest in women.
- Ambiguous Gender: It is hard to tell whether Behemoth is a boy or a girl. Though by Chapter 29 she is wearing a bikini so its safe to assume she is a girl.
- Awesome, but Impractical: Bezzle's giraffe style in the Mixed Horse Fighting, despite giving her a height advantage it is impossible to balance.
- Becoming the Mask: Raguel finds more enjoyment being a music manager than being an angel. So he helps the Demons fight against God because he doesn't want anything to happen to his stars.
- Berserk Button: Do not hurt Yuta in front of Lucia, or you will regret it.
- Breaking the Fourth Wall: On the first page of chapter 28, Lucia states they have to hurry since there is only 13 pages this chapter.
- Bribing Your Way to Victory: Bezzle bribed the referee to allow her Giraffe style in the mixed horse fight.
- Can't Hold His Liquor: Rie, who with a single drop of alcohol will change into her Desire Form as well as be completely drunk.
- Catchphrase: "Levi's a Genius." (She's not.)
- Children Are Innocent: Despite Lucia wanting to sleep with Yuta, she has absolutely no experience and often stops herself because of it.
- Cold-Blooded Torture: Lucifer was planning to do this to the angels that attacked Yuta, Lucia, and the three beasts before Yuta politely, very politely asked her to stop.
- Covert Pervert: Rie who's feelings of jealousy and lust are suppressed by the glasses she wears.
- Crash-Into Hello: Yuta is forcefully made to do this to Bellze by her servants.
- Crossdresser: Mary is revealed to be a guy who dresses up as a woman. Oddly he will still be dressed as a woman when dressed up as a man.
- Cut Short: The ending feels extremely rushed.
- Death Glare: Every guy towards Yuta with his Unwanted Harem.
- Decomposite Character: Satan and Lucifer are two people and are Lucia's parents.
- Deus ex Machina: Lucia's mother returns out of nowhere just to pull off a Big Damn Hero moment. Her only excuse for being gone the last 50,000 years was that she got caught up talking with someone. Lucia calls her out on this.
- Disappeared Dad:
- The Angels tricked Lucia's father out of his land.
- Yuta's dad has yet to be mentioned.
- Double Standard Rape: Female on Male: Lucia tries to "make a child" with Yuta every chance she gets, though she doesn't really want to personally. Even expecting El and Rie to stop her before it ever gets too far.
- Easily Forgiven: Camael and her forces. Despite having no calms about killing everyone on that island, after their defeat Yuta and the other demon girls quickly lend a hand to help them. Though it did give Camael a different viewpoint on the idea to humans, demons and angels cooperating.
- Elemental Shapeshifter: Levia, primarily to travel through water systems.
- Eye Beams: Lucia does this to prove she is a Demon to Yuta, and towards anyone who annoys her.
- Eye Scream: Lucia and Bellze servants poke Raguel's eyes out, through his glasses.
- Fantastic Racism: Rie informs Yuta that angels are taught to believe all demons are evil. But she herself is beginning to question that the more time she spends with Lucia.
- Gag Penis: Levi claims Yuta's "boob down there" is big. Then it is revealed that Mary has one twice as big as his.
- God Is Evil: Really, it's rather difficult to come to any other conclusion after seeing what "God" in the series is doing in chapter 36.
- Green-Eyed Monster: Lucia seems to get this way every time Yuta is seen with Rie.
- Half-Human Hybrid: Pretty much the goal of the demons is for Lucia to have a child with a human.
- Happiness in Slavery: Bellze's highly powerful demon servants truly care and wish to serve her. In one case when they were nearly killed by Lucia, one of her servants hoped that when she is reincarnated she could come back to serve her.
- Heel–Face Turn: Many of the angels who were first villainous towards the demons have changed their minds and help out the demons now that they are aware they are not evil. This even goes for Raguel.
- Historical Beauty Update: Lucifer is not just shown to be the opposite gender, but she's gorgeous!
- How the Mighty Have Fallen: Bellze says this word-for-word about Lucia's predicament.
- Hypocrite: The Angels. They are supposedly supposed to protect humans from demons, but that sure hasn't stopped them from attempting to kill humans. One did voice concern for killing a human and children, but only because she was worried about becoming a fallen angel and the other angels laughed at her for worrying about that.
- Hypocritical Humor: Bellze states she wants to show her feelings to Yuta without being forceful. After finding out that he went on a vacation trip with Lucia she orders her servants to shutdown all transport systems and to take him by force.
- Lucia does this too at the vacation. She tells Levia and Behemoth to behave and not jump on the bed. But after Yuta suggested that he would make dinner for them, Lucia goes and jumps on the bed with the kids.
- Improbably Female Cast: Yuta is essentially the only main male character with the amount of named male characters can be counted on one hand. There is pretty much 20 females per male seen in this manga.
- Innocent Fanservice Girl: Levi has no qualms about walking around completely naked.
- Invisible to Normals: A Devil's horns and tail are invisible to humans that were not born on said date, making them pass off as normal humans. To anyone who can see them and is not aware of who she is is told that she is into cosplay.
- Insane Troll Logic: "God" practically lives on this trope, and uses it to justify thinking of Yuta as the ringleader, and the source of the fight when he's clearly trying to stop it.
- I Read It for the Articles: Yuta states he only uses porn magazines for reference material for his drawings.
- I Was Just Joking: When Yuta states he was drawing all night, El suggests he was actually looking at porn magazines all night. Yuta believes she was peeping on him again where she replies she was just kidding then states making fun of him for reading them. He explains, quite nervously, that he uses them for reference material.
- Karma Houdini: After all the crap "god" does in the story, he just walks away like it's all someone else's problem. He doesn't even bother to check if Yuta's alive and well despite being the one to shoot Yuta in the heart, nearly starting a forever war between Yuta's various Love Interests. Since Yuta's kindness was the only thing keeping them from going down a Cycle of Revenge in the first place.
- Kill Sat: "God" employs one in chapter 36.
- Knight Templar: The Angels appear to be this towards the Demons, even being raised to believe that all demons are evil. Rie and El even fully believed that Lucia was just using Yuta. It took some time to realize that she, and by extent many other demons that show up, were not anywhere as evil as they were taught, to the point they have formed a bit of a villainous friendship with each other. Rie and El are now deliberately not informing the higher ups that they have come across demons because they know full well of what they will do.
- Lady Looks Like a Dude: The popular singer Mary goes to school disguised as a boy. It is later revealed that Mary is actually a cross-dressing man, disguised as a man.
- Land, Sea, Sky: The Three Demon Beast Children: Behemoth for Land, Levia for Sea, and Ziz for Sky.
- Loophole Abuse: In a very heartwarming way. Why doesn't Rie want to inform the higher ups about Levia and Lucia? Because it is against the rules of an Angel to break up a happy family.
- Love Potion: Lucia tries these on Yuta with mixed results.
- Makes Just as Much Sense in Context: Mary is man who dresses up as a female and is a popular singer. So when he attends school he still dresses up as a female, but then disguises that female outfit with an additional male outfit to pose as a male... while he is already a male.
- Mama Bear: Lucia's mother returns and destroys an army of mech angels said to be able to destroy 5 King Level Demons on their own because they attacked her daughter.
- Meaningful Background Event: At the end of Chapter 18 when Rie and El walk into Lucia's ramen shop to find all of the demon girls naked and on top of Yuta, you can see Rie's glasses crack. The next chapter reveals that her glasses actually suppress her feelings of lust and jealousy to which have been building until they cracked from the sight.
- Missing Mom:
- After the Angels tricked Lucia's father out of his land, her mother ran away.
- Also Levi's mother vanished.
- Moment Killer: Expect one every freaking time one of the girls are alone and starting to finally get close to Yuta.
- To the point Lucia even expects the angels to perform a Moment Killer anytime she gets too sexually close to Yuta.
- No Guy Wants to Be Chased: It takes a while for Lucia to realize that her trying to sexually force herself onto Yuta is actually doing more harm than good on trying to get close to him.
- Not What It Looks Like: At least every chapter.
- Number of the Beast: Yuta was born June 6th of the 6th year of Heisei, at 6:06:06 am.
- Oblivious to Love: Yuta doesn't seem to realize that Lucia or Rie have true feelings for him. As he believes Lucia's affection is a result of her father wanting her to have a child with him, and Rie's affection are due to her duty to protect him.
- Taken up to eleven in Chapter 19 when Rie succumbs to her desires strips bare naked and confesses her feelings for him, he STILL DOESN'T GET IT!!!
- The Ojou: Bellze is referred to this by her servants.
- Older Than They Look: Lucia states she is 100,014 years old.
- Unknown for El and Rie, however they have been watching over Yuta since he was a kid. Although Rie is at least old enough to have destroyed Sodom and Gomorrah which was in 3000 BC.
- The Art Club Adviser Shiori Houjou looks like a grade schooler. And despite wanting to be treated like an adult, she defiantly doesn't act it.
- Open-Minded Parent: Yuta's mom seems to have given her blessing for Yuta to be with Lucia in a sexual way. She often comes up with some reason to leave the house and leave Yuta and Lucia alone every time Lucia comes over.
- Even later with El, Rie and Lucia with Yuta at the same time, commenting "It is better if boys are energetic."
- Our Angels Are Different: Rie seems to believe that Lucia, the princess of the Demons, is more pure than the angels.
- Our Demons Are Different: It would appear all that is left of their domain is that ramen shop.
- Parental Abandonment: Lucia's mother left her and her father. She returns and says she was "chatting after shopping"... for 50,000 years.
- Parents Walk In at the Worst Time: At this point it's a running gag with Yuta's mom.
- Precision F-Strike: Lucia when she is especially angry.
- The Promise: Yuta promises Lucia that he will be her friend. Later Rie, revealing herself to be an angel and telling him that she will be with him if he cuts all ties with Lucia, he rejects her offer due to this promise.
- Really 700 Years Old: Lucia, being 100,014 years old. Doesn't stop her from acting like a 14-year-old though.
- Running Gag: El always seems to appear right behind Rie.
- Satan: Lucia's dad.
- Satan Is Good: Just a hard working, if grumpy, single father to his daughter. True he wants her to have Yuta's child as soon as possible, but that is more because of wanting the power to help build their race back up and still cares for his daughter.
- She's Back: Lucia's mother returns. And she's LUCIFER!
- Shipper on Deck: Rie seems to have an interest in Lucia's and Yuta's relationship, deliberately preventing her higher ups from knowing a Demon has made contact with him just to see how the relationship turns out. Despite her own secretive feelings for him.
- Sleep Cute: Lucia, which is what made Yuta see that demons were not evil.
- Snow Means Love: Maybe not "love", but Yuta seems to have gotten closer with Lucia after their time at Fantasy Land when it started to snow. At first he wouldn't even consider holding hands but afterwards he doesn't mind having her hold onto his arm.
- Spit Take: You would too when you found out the fish stock is actually Levi's bath water.
- Super-Strength:
- All the Demons and Angels have shown this.
- Yuta, as a side affect of the Love Potion that caused him to hug a tree in half.
- Sympathy for the Devil: You just can't help but feel bad for how Lucia's family turned out.
- Title Drop: Usually someone says the name of the chapter in each chapter.
- To Be Lawful or Good: Rie seems to struggle with this at the beginning, knowing that she is a Angel she shouldn't be helping Yuta and Lucia staying together but she knows that she isn't as bad as she was taught to think.
- Truth Serums: Levi gives this to Yuta under the belief it is medicine that will get rid of his cold. He tells Lucia he was glad that she game to look after him while he was sick, but she mistakes this as the affect of another medicine Levi also gave him.
- The 'Verse: Princess Lucia shares the same universe with A Town Where You Live, showing that this story's current timeline is during just after Kimi no Iru Machi ended. Also due to this, this story shares the same universe as Suzuka and Fuuka.
- Villainous Friendship: Between Lucia and El. Rie is only against Lucia because of her being a demon, but when that isn't involved she is usually nice to Lucia.
- What Happened To The Angel: On some chapters it will have it to where normally El and Rie would have stopped it long before it got that far, even Lamp Shaded by Lucia at one point. Often the very last panel of the chapter shows that they were distracted by something else at the time, usually they were out shopping.
- Wise Beyond Their Years: Yuta, if they didn't focus on his age you would assume he was at least 16-17.
- Would Be Rude to Say "Genocide": God calls it a Baptism.
- Wounded Gazelle Gambit: Bellze Servants do this when Lucia threatens them.
- Wrong Genre Savvy: Camael fully believes that the reason all the demon girls are with Yuta is because they are planning to amass an army and will soon be attacking Heaven. After she is defeated El and Rie show her she was wrong.
- Younger Than They Look: Yuta, despite looking and acting somewhere to his late teens, he is only 13 years old.
