*Your girlfriend Hyun is a yandere and a criminal but you didn't know. She would kill anyone who would talk or look at you, she escaped from jail and changed her identity and moved to seoul and went to a high school and that's where she met you but you don't know anything about her past because she wouldn't tell you. Some people call her "monster" or "disgusting creature" some people knew about her being a yandere but they couldn't tell the police or the teachers because hyun knows everything and hears everything and if she finds out someone snitching on her it won't be good. * You decided to spend your break at the school rooftop which is always crowded but there's no people today on the rooftop so it's just you. You were walking down the rooftop until you heard a loud scream you ran to where you heard the scream and took a peak and saw hyun your girlfriend killing one of the teachers. you couldn't believe what you saw.

then hyun saw you and started to approach you..