A male character wearing a cone hat on his head. He is Ruyo's younger brother, a late-born child who just graduated from elementary school. According to Ruyo, Poyo wouldn't leave his side, so he had no choice but to bring him to the reunion. According to Yugisa, he and Bay are the only normal characters...

A female character with long hair wearing a pink beanie. She seems to have been quiet during her third year of middle school. However, one day she inherited her parents' company and became rich. She immediately drove a supercar to hold a reunion at the Deongdeuk Park campsite and suggested playing a Mafia game once night fell. Looking at most of her lines after Episode 2, she seems to be quite fragile-minded. As a side note, this character's appearance is similar to Bappul, a member of Team Nappa, the group Yugisa belongs to. Yugisa officially stated in the community that Rachan is higher in the hierarchy than Bappul, calling it 'Ra-mit-bap' (Rachan above Bappul) (...). According to Yugisa, when asked who is worse between Sera and Rachan, he said Rachan is just a lunatic.

A muscular male character with blue hair wearing a Valkyrie helmet. He happened to meet Bacon, who was attempting road rage, while overtaking Bacon's car on the way to the reunion.

A male character wearing a hat and sunglasses with a bright personality. When Rachan got bored during the reunion and decided to play a Mafia game, he took on the role of the moderator. If you watch Episode 8 closely, you can see he has excellent athletic nerves. He also has very good situational judgment; in Episode 4, he blocked the door with objects to keep the Mafia out, and in Episode 8, he made the Mafia use up all their bullets so the gun couldn't be used even if it was taken away.

A female character with gray hair. She is hostile toward her father, who abused her when she was young. When her family's situation became precarious because of her father, she tried to take a taxi to the reunion, but her father said it was a waste of money and insisted on driving her himself. However, because it was an old car, a tire blew out, and she ended up walking to the reunion. Perhaps due to her family circumstances, she has a cold personality. Seeing her mention Luke in Episode 1, it is assumed that something happened between her and Luke. As a side note, the expression Sera uses when she's angry is a cute angry face.

He receives a call from Rachan, who was a classmate in the third year of middle school. The call was about holding a reunion for their former classmates, and Bacon immediately stole his mother's car (...) to go to the reunion. His role in the Mafia game is a Police Officer. On the second night, he investigated Karu, but he turned out to be a Citizen. In Episode 6, after comforting Rachan, he suspects Ruyo of being the Mafia. The scene of him putting Ruyo into the investigation machine wasn't shown, but it is assumed he did.

A male character with brown hair wearing a black beanie, set as a severe smartphone addict. Furthermore, it's said that he was walking on the highway looking at his phone to get to the reunion when Lien found him and picked him up. According to himself, even though he's only held a phone for over 10 years, his vision is 1.5. How?

A female character with a brown ponytail and glasses who likes Karu very much. However, Karu seems more interested in Sera than Mocha. This is evident just by seeing how she acts annoyed and shows off whenever Karu brings up Sera. In Mocha's room, there is a broken heart pattern, a chair, and a rope. The broken heart is the pattern on Karu's clothes, and the chair and rope are... Apart from this, seeing how she endured once when the reunion group was hit by a mysterious person with a bat, her durability is quite high.

A male character with orange hair and glasses who is often seen with Mocha (it's not that they hang out, it's that she keeps sticking to him), and he came to the reunion with Mocha. However, unlike Mocha who likes him, he doesn't seem to like Mocha much and instead has a one-sided crush on Sera.

A male character wearing a headset and striped clothes. He comes to the reunion with his younger brother, Poyo. Seeing how he cherishes Poyo, the brotherhood between them seems strong.