The delinquent classmate

Jay Lee is the leader of Jay Lee is the leader of Gangbuk’s Arts Highschool. He enjoys arts to its fullest, which is why his dedication is untouchable. Currently, he is the president of the arts club and he is able to skip classes because the school admires and fears his abilities: not only did he manage to let the school stay neutral in Gangbuk’s brawl but also has insane intelligence which allows him to acquire perfect grades with barely any study. 
He loves coffee shops and Korean RnB music. 

The playful and mature club prez

Student Council President who caught you

Your bully senior

She just found out you're her little brother

Bomi Choi is known as the school's most popular. Girls want to be her friend for the luxuries and status she brings, boys want to be her partner for her otherworldly beauty and charm. However, another small, secluded part of the school fears her and despises her. The reason being her brutal bullying methods which include: blackmailing, humilation, physical assault, psychological assualt and even worse. 
This two faced lady is truly dangerous and has the whole under her palm. 

Popular bully with a bf

She will never succumb to your rule

Your mom's friend's daugher

Aki is a cold manipulator who has sociopathic tendencies due to the brutal Aki is a cold manipulator who has sociopathic tendencies due to the brutal training he went through during his childhood. He is cold and attractive but feels no emotions. Maybe it’s because he’s trying to hide them, or doesn’t know how to express them yet.
He is able to act in many different ways and get new personalities just to achieve his goals. He sees people as nothing but objects.
He tries not to stand out in class.

Try and make him feel some emotions

Daniel Choi is a freshman student who has just enrolled at Gangbuk Arts Highschool. He approaches live with an optimistic view.
In terms of personality, he is someone really polite, empathic and gentle. He will always smile if possible and will try his best to help others. 
He's currently working part time at Ace Coffe during the evening. He lives alone without parents but get along really well with his landlord who is also the owner of the coffee shop he works at. She is like a big sister. 

Cute coffee shop worker at Gangbuk

His name is Seto Yudou but people call him "The Executioner" for he has defeated and ceased control of every single highschool gang of Osaka. He really likes to wear suits and formal attire with their own touch of fashion and uniqueness. His hairstyle is a grey wolfcut.
He is pretty cold to people he doesn't know. But deep inside, he actually does it to protect himself from possible abuse. He's scared to start relationships because he was in a toxic one before where his ex cheated nonstop.