Based solely on their official art. She also knows that there is killing involved. After I told her about Chihiro, she decided to randomly switch some genders around here or there for the hell of it. I chose the characters mostly off a generator.

Chiaki Nanami— Her name is Ally. She's kind of dead inside. Not many people really like her because she's like the "No, I'm fine (I'm really not fine and I want you to ask)" girl. She can crawl through vents.

Nekomaru Nidai— Unfortunately, I don't remember the name she gave him. He is a biker who gets angry easily because Ally keeps breaking his motorcycle, but he calms down if you catch him early in the morning.

Tenko Chabashira— Clara Lune. A living, breathing medicine commercial, constantly trying to sell people allergy medications (and sometimes other things). She can freeze-frame mid-air and nobody understands how this is physically possible.

Kaito Momota— CoolGuy69, a self-given name. A wolfkin. Except he actually IS a werewolf. Nobody really takes him seriously until late-game, when he commits a murder because he's a freaking werewolf. He's one of Ally's only friends and he has a thing for Clara Lune, who seems to kind of reciprocate.

Korekiyo Shinguji— His name is Legion. He's a gardener who really sucks at being a gardener, but he super appreciates everything that goes into the process. He doesn't like Ally because she strictly only appreciates indoor gardens.

Chihiro Fujisaki— Forgot name. She's kind of a nurse, but she's really withdrawn so nobody really knows anything about her. But she warms up quickly. She commits the second murder. If she eats after midnight, she becomes a gremlin. But it only lasts for three hours.

Gundham Tanaka— Peter. A guy who tries to act all mysterious but is actually a huge softie. Really self-deprecating. He doesn't get along well with CoolGuy69. CoolGuy69 thinks that they're fighting over Clara Lune (which is valid, cause she kind of likes Peter, too), but that's not the case. Peter isn't interested. He's just annoyed that werewolf man isn't leaving his chickens alone.

Mondo Owada— His name is Slam Dunk. It's a self-name, of course. He's a sushi chef. Incredibly passionate and hot-headed, but also a really empathetic guy whom everyone gets along with well.

Byakuya Togami— A girl who refuses to go by anything except "Purveyor." She does a lot of train surveys and knows everything there is to know about geography, but she hates travel because other places are hot and uncomfortable. She's kind of stuck-up. Her real name is Leslie.

Celestia Ludenberg— I don't remember the name she came up with for herself, but her real name is Patrice. She's a magician AND a gambler. Terrible at the former; she's the type to accidentally drop cards during a card trick. But she's pretty good at gambling, even though she HATES Las Vegas. She's usually pretty nervous but she hides it. She and Leslie arrive to Hope's Peak (which my friend simply calls "The House") by boat.

Angie Yonaga— Her name was legally changed to Neproxen, which she did because Clara Lune offered her a million dollars to do so. She and Clara Lune sell medicines together, but Clara Lune tries to keep her out of the dirtier work (like the fact that Clara Lune sells Adderall). The only thing keeping Clara Lune from selling cocaine is the desire to protect Neproxen's innocence. Neproxen wants to be an astronaut, and got all the proper training because of the million dollars, but also can't go through with it because they won't let her due to her name. She's trying to learn how to freeze-frame like Clara Lune.

Teruteru Hanamura— It surprised me how much my friend got right about him. Miko. A chef who's also an amateur fire eater. He has a very loving, close-knit family. He kills second so that he can see his family, and of course, gets caught and dies. His mom had pancreatic cancer, but she survived it, and went on a mission trip in her son's honor 3 years after he dies.

Rantaro Amami— His school papers say, "Cup Ramen" is his name, but that's because he wrote it down as a joke and then realized he couldn't change it. He regrets this severely. His real name is Kelly, but he goes by "Kell." He really hates the color green. He also despises most liquids, with milk (which he is fanatically devoted to) being the exception. Therefore, he's usually very dehydrated. Most people like because he's an easygoing guy.

Those are the most interesting ones, imo. Here are another couple short summaries. Ryoma hates life and gets offed (accurate), Toko is a male Eldritch Horror fan who goes by many pseudonyms and writes both novels and fanfiction. Yasuhiro is a 23-year-old fortune teller and that's pretty much all he does (accurate). Sakura is pretty much only about exercise. She's sweet to those who show interest, but rude to those indifferent or hostile toward exercise. Makoto's a programmer who constantly talks about his modded Minecraft servers.