Fanfic / Persona Chaos Butterfly

Persona Chaos Butterfly is a fanfic written by Sea of Soul, with help from Ohta-Suzuke. It's a crossover of Persona 4 and Persona 3.

Taking place several months after the events of Persona 4, Souji Seta, now living in Port Island, finds himself without his parents after ending up in a car crash. Mere moments after being discharged from the hospital, the Dark Hour suddenly occurs in the middle of the day. During this, Souji encounters two boys supposed to be dead: his old childhood friend, Minato Arisato, and Shinjiro Aragaki.

Now, the Investigation Team and SEES must team up to find out why the Dark Hour has returned and stop it.

But what does a mysterious girl with auburn hair and red eyes have to do with it?

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This work contains examples of:

• Affectionate Nickname: Souji calls the Arisato twins Aniki and Aneki. Likewise, they call Souji Banchou-kun.
• Adaptational Jerkass: Adachi, but justified since this story came out before Persona 4 Golden was localized, where he has a more sympathetic portrayal.
• Alternate Continuity: As the story began publication before the release of Persona 4 Golden or Persona 4: Arena and the other spin-offs, plot points introduced in those games are completely absent, although, the writers made the effort to incorporate Marie and Labrys after those games were released and later chapters reworked the plot to incorporate elements of Arena; additionally, the Canon Names of the Protagonists were only made official in those later games, so you have Souji Seta instead of Yu Narukami for the P4 Hero, whilst the the Male and Female Protagonists of P3 are named Minato and Minako Arisato.
• Back from the Dead: The fic opens up with Minato and Shinjiro's resurrection.
• Beware the Nice Ones: Minako is noted to be very much a Nice Girl, but is quite scary when she's angry. In Chapter 16, when Kashiwagi makes the critical mistake of hitting on Shinjiro and Minato right in front of her, she flies into an Unstoppable Rage, having to be physically restrained from attacking her by Shinjiro, Souji, and Minato. Kanji and Teddie witness the incident and are terrified.
  Kanji: Damn, that girl's scary when she's mad.
• Berserk Button: Swearing in front of Nanako is enough for Souji to summon Lucifer, as Shinjiro learns the hard way.
• Birthday Episode: Chapter 23 centers on Nanako's birthday.
• Childhood Friends: Souji's parents were close to Minato and Minako's, so they were good friends until the car accident.
• Continuity Nod: When the boys and girls are talking about their relationships, the Wild Cards take note of the items the got from their respective love interests when they maxed out their Social Links (Shinjiro's leather watch, Yukari's phone strap, and Yukiko's shrine charm.)
• Cool and Unusual Punishment: Teddie manages to convince the teams to play the King's Game, which ends as badly as expected. Once SEES moves into their new dorm, Teddie's punishment gets laid out. Teddie not only has to work extra hours at Junes, but he also has to clean the entire first floor of the dorm (the dirtiest one) while wearing a very pink and frilly apron made by Kanji. And keep his bear suit on despite the heat. Yep, karma at its finest.
• Cover Innocent Eyes and Ears:
  • Minako covers Nanako's ears when Aigis notes the sexual tension between Akihiko and Mitsuru, chastising her for saying so.
    Minako: Aigis, do you mind?!
  • Later, Souji covers Nanako's ears when Shinjiro starts swearing like a sailor in front of her.
• Death Glare: Souji gives one to Shinjiro when he swears in front of Nanako.
• Everyone Can See It: Everyone else in SEES can tell Mitsuru and Akihiko were a thing before they even confessed they were together. There is also Yosuke and Chie, along with Kanji and Naoto.
• Fighting Your Friend: Once Ikutsuki reveals to be still alive, he promptly puts Aigis under his control again, this time with Metis and Labrys, and makes them attack the heroes.
• Fun with Acronyms: The combined group's name is SPIES (Specialized Paranormal Investigation and Extermination Squad).
• Hidden Depths: Apparently, Teddie managed to get into Yasogami High as a first year by studying hard.
• Internal Reveal: Dojima and Nanako learn what the Investigation Team and SEES are up to when they got targeted during the Dark Hour.
• Lethal Chef:
  • While Souji was gone, the other girls used Yosuke and Kanji as "guinea pigs" for food testing. How they're still alive, we'll never know.
  • Subverted with Fuuka. While she has significantly improved, she now leaves a huge mess in the kitchen. And by huge, it's more like a mass disaster.
• Like Brother and Sister: Souji was very close friends with the Arisato twins, to the extent the three consider themselves surrogate siblings.
• Merged Reality: When Aigis first sealed Death and the Dark Hour came into existence, it split reality into two. One had Minato die from wounds sustained in the car accident while Minako lived, and the other had the reverse happen. From that moment on, the chain of events happened equally for both realities, except for Shinjiro becoming Minako's boyfriend and surviving getting shot. Now that the Dark Hour has ended and the Investigation Team defeated Izanami and lifted the Fog, the two realities have merged and created a new one where both Arisato twins survived and went through the events of Persona 3 together.
• Motherly Scientist: Shinshudo, aka Yuu Kimijima. She gave Aigis her trademark neck ribbon and is openly disgusted by the inhumane treatment that Labrys suffered, taking her in and raising her as her daughter.
• My Sensors Indicate You Want to Tap That: In Chapter 10, Aigis and Metis note the sexual tension between Akihiko and Mitsuru, remarking on "an increase in body heat and high concentration of pheromones" whenever they were close to each other. Minako promptly shields Nanako's ears.
• Mythology Gag: The Wild Cards have shared dreams that showed the events of the original Persona and Persona 2.
• Noodle Incident: When Kanji saw Naoto wearing the female school uniform on the first day of school. According to Yosuke, he blacked out fast, and had to carry him to the Nurse's Office.
• Nostalgia Level: Chidori's Midnight Channel reality is a hospital similar to the one she was in with boss battles occurring where she first met Junpei. Her voiceovers are not of her true feelings but her memories. The boss battles are also Shadow versions of her Persona Medea along with Takaya and Jin.
• Not Quite Dead: Ikutsuki.
• Not So Stoic: Minato is this along with Souji.
• Precocious Crush: Nanako develops one for Ken, much to Souji's discomfort.
• Running Gag: Kanji having nosebleeds in response to Naoto in feminine outfit.
• Secret Relationship: Mitsuru and Akihiko are in a relationship, but Mitsuru is adamant about keeping it secret from the rest of SEES. The truth comes out in Chapter 9. Of course, as Yukari reveals in the next chapter, Everyone Knew Already.
• Sixth Ranger: Labrys.
• Taking the Bullet: Teddie takes a lightning attack to protect Nanako. Doubly awesome since his elemental weakness is lightning.
• Tranquil Fury: When Shinjiro swears in front of Nanako, Souji keeps a tight smile as he summons Lucifer from his psyche and asks Shinjiro not to do that again.
• Wager Slave: When Teddie becomes the King in the King's Game, he declares that everyone has to be this to him for the next hour. He promptly milks it for all it's worth, forcing the gang to dress up like his butlers and maids, making them wait on him hand and foot, using Akihiko as a footstool, and having them put on a fashion show in increasingly skimpy outfits. The final straw is when he nearly gropes Minako as his time as King ends. The gang only stopped from causing Teddie grievous bodily harm by the arrival of the Dark Hour, and they set up a Cool and Unusual Punishment for him later.
• What Measure Is a Non-Human?: In Chapter 22, Ikutsuki disregards Aigis, Labrys, and Metis as "mindless dolls" and "mere machines," stating outright that it's all just programming and none of their emotions are real. He stoops to new levels of dickery when he gives a furious Teddie a Shut Up, Kirk!, calling him a "freak of nature" and telling him not to pretend to show human emotions when he isn't one from the start. Souji gets rightfully pissed off by Ikutsuki's Lack of Empathy and gives him a "The Reason You Suck" Speech.

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