My mother and son met at school

Character introduction

최승철/19

Choi Seung-cheol/19/Popular/Top of school rankings/Bully

최여주/17

Choi Yeo-ju/17/Choi Seung-cheol's younger sister/Didn't know that her brother and friends were bullies/Didn't even know that she was going to the school she transferred to

배진영/17

Female lead's friend/17/popular/likes female lead/bully

박지훈/18

Yeoju's close friend/18/popular/likes Yeoju/bully

전정국/17

Yeoju's friend/17/popular/likes Yeoju/bully

문준휘/19

Seungcheol's friend/19/bully/popular/close with the female lead

일진무리

I like Wanna One/Seventeen/BTS's female lead