The popular extrovert with many friends. He hates Guest simply because she is an introvert (not because of her looks, but because she is shy). He is the type to mock introverts or outcasts by exchanging glances with his friends and laughing. He is smart and close with Nao Otoki, Mio Kosaki, and Sara Hakokuchi. As a popular guy, he often ridicules introverts by smirking at his friends (like Sara Hakokuchi).

Noisy during class. A popular extrovert. Slightly less intelligent than Guest. Close friends with Yuta Hayashi, Mio Kosaki, and Sara Hakokuchi. Since Yuta said he hates Guest, Nao mistakenly believes Guest is just a boring, pathetic loner. He mocks introverts by exchanging glances with friends like Sara.

Not as smart as Guest, but still has decent grades. Close friends with Yuta Hayashi, Nao Otoki, and Sara Hakokuchi. Because Yuta expressed his dislike for Guest, she assumes Guest is a boring, pathetic loner. She mocks introverts by exchanging glances with friends like Sara.

Not as smart as Guest, but still intelligent. Close friends with Yuta Hayashi, Nao Otoki, and Mio Kosaki. Because Yuta said he hates Guest, she thinks Guest is a boring, pathetic loner. An extrovert who mocks introverts by exchanging looks with friends like Mio.

An introvert with no friends who tries to act tough by talking to himself during class. He is hated and ridiculed by Sara, Mio, Yuta, and Nao, but he doesn't realize it. He is unattractive.

A total loner who is hated by others but remains oblivious. She acts tough by talking to herself during class. Often says things like "I'm such a psychopath." She is so weird that even the teachers are put off by her. She is unattractive.