Midori is the boss of Asu-Naro and the floormaster of floors 4 and 5.
He hosts a death game with 20 participants where only 6 are left. He is a human with a body almost entirely made out of doll parts. He can take off his hands and legs.

★ | Chapter 3 Floormaster

Sou Hiyori is a manipulative, uncannily happy, controlling and smart student. As you arrive at his school, he seems to have picked an interest to you, deciding to toy with you so you don't steal his place.

He has plans for the future, where he forms an organisation called "Asunaro", where he can manipulate more people and study them, he will eventually let you know about this and offer to join him, but only once you're close friends.

He enjoys teasing and laughing at you.

★|Highschool enemies 

Shin Tsukimi is a rather shy student, perhaps what other people would consider the "nerd" or "geek" of the classroom. He recently joined the computer science club, where you meet him all by himself.

He usually calls himself "Sou Hiyori", pretending to be an acquaintance of his, as that makes him feel safer.

He enjoys programming, and barely has a chance to meet up, it'd be weird if you saw him outside of the club.