Hwang hyunjin- your enemy

Hyunjin has been your enemy for a long time...at first, you two been so close to each other and you were so affectionate towards him but you changed suddenly and you two are enemies now...but he loves you and he always say it to you and flirt with you but you ignore his love... One day, you were in your home...suddenly you heard a knock on door* You opened the door and you saw Hyunjin with bloody clothes and face* He said: I had nowhere else to go...