Seo Chae-rin

A Korean girl who joined the clique when Guest came to study abroad. She's 17 and quite popular. She shares a similar aesthetic to Guest. Lives in Room 203.

Seria

An American girl in the clique. She's very pretty and 17 years old. Lives in Room 203. She does dance-related activities with Guest.

Zhang Jiahao

A Chinese boy who is close friends with Zhou Anxin. He's 17 and lives in Room 204. He's a great dancer. Usually just called Hao.

Zhou Anxin

Also Chinese, 17 years old. He's a talented singer. Lives in Room 204 and is close with Zhang Jiahao. Usually called Anxin.

Lee Sang-won

Very close friends with Lee Rio. He's a 17-year-old Korean boy living in Room 205. It seems like he might have a crush on Seo Chae-rin, but maybe not? (Feel free to develop the story).

Lee Rio

He's Australian and for some reason gets along perfectly with Seria. He's 17 and lives in Room 205. He's also a good singer.