Persona 4, Recycled In Space, with an even more screwed up cast engaged in Teeth-Clenched Teamwork. They fight shadows.
For a broader description, Disappeared! is a play-by-post Role Playing Game that is played on InsaneJournal. It takes the basic idea behind Persona 4 and makes it much bigger.
The roleplay can be found here. It was started in 2009 and came to a conclusion in 2011.
Disappeared provides examples of the following tropes:
- Adults Are Useless: Not a single persona-user is older than 18. Guess who are the sole group actually doing anything about the murders and disappearances?
- Angrish: Maeko has a tendency to devolve into saying "stupid stupid stupid" and variations of such when angered sufficiently.
- Bland-Name Product: Much more extensive than in Persona 4, with everything from 4chan to the Nippon Ham Fighters, and including TV Tropes itself, getting this treatment.
- Breaking the Fellowship: The team's meltdown after Kiriko's dungeon, which nearly gets them killed when Maeko's shadow sells them out to the murderous angels.
- Butterfly of Death and Rebirth: Philemon. He appears to the party after the first Curb-Stomp Battle against the angels, granting them the Butterfly Room.
- Character Development: Integral to the plot of the game is the maturation of the teenage cast.
- Clap Your Hands If You Believe: Paradise is entirely formed from people's thoughts.
- Collective Groan: The typical response to Misaki's Friendship Speeches.
- Cultural Posturing: Half of what Kouchisei has to say is about the obvious superiority of Japan.
- Four Is Death: There are four angels. They appear in the technical fourth dungeon. In one more humorous example, Kai repeatedly fails his Zio spells by rolling fours in combat.
- G.I.R.L.: Kiriko prefers to play as male characters in MMORPGs. So does #4.
- Hands-Off Parenting: Except for where they actively feature in the individual plotlines of characters, most parents are conspicuously absent. Toru's are extremely glaring examples.
- Heel–Face Turn: Seiji betrays the other angels in order to assist the team. It doesn't end well for him.
- Improbable Weapon User: Kozue uses a tennis racquet. Joke weapons also tend to fall into this category.
- Laser-Guided Amnesia: If a character rejects their persona and powers, the rest of the team automatically forgets about their involvement in Paradise.
- Light Is Not Good: While Shadows are common enemies, the real villains of this story are a group of angels.
- Next Sunday A.D.: The game ran from 2009 to 2011, but is set in 2013.
- One-Steve Limit: There were originally three characters named Noriko. Since then, only one has persisted. Another one had her name retconned to Natsuko.
- Precision F-Strike: Masami said "fucking?" She's definitely gone shadow.
- Prolonged Prologue: The predungeon investigations are often quite lengthy.
- Retcon: Ginjiro never invaded the dorms. Nobody ever called Toshimi scary. Reizo never commented on Yoshimi's Bland Name Kingdom Hearts panties because she doesn't own any.
- Seeking Sanctuary: The Butterfly Room cannot be entered by malicious shadows, or so it seems.
- Shirtless Scene: Reizo gets several, in order to... erm... highlight his yakuza tattoos.
- Slice of Life: The non-plot character threads, which deal with club activities, video games, dates, chance encounters, and other mundane interactions meant to flesh out the characters.
- Snooping Little Kid: Emi and Kozue, who attempt to spy on the Anti-Bullying Club and end up getting dragged into being persona-users when they're caught.
- Touched by Vorlons: Being thrown into Paradise seems to have activated the characters as persona-users.
- Translation Convention: The game is supposedly set in Japan, and is thus technically in Japanese, but written out in English.
- The 'Verse: Set in the same continuity/universe as Persona 3 and Persona 4. And apparently Hellsing, according to one of the players.
- The World Is Always Doomed: Only a few years after Nyx and Izanami, a group of teenagers are stuck fighting the angels and their impending Millenium City! Persona-users never catch a break, do they?
- Why Did It Have to Be Snakes?: In Tom's dungeon, Toshimi turns out to be utterly terrified of the cars attacking the party. Turns out, her cousin was killed in a car accident right before her eyes.
- You Can't Thwart Stage One: Every attempt at preventing the angels from throwing characters in Paradise is doomed to fail. As is being a character with The Potential and not getting thrown in by the team.