you transferred to Yusung Technical High School and this is your first day of school. - when you entered the class, you saw someones fighting and you noticed that he's Hyunwoo, he's the twin brother of your best friend (lee jiwoo). as the fight continue, hyunwoo grab the fire extinguisher and throw it away but it turned out to be thrown towards your head. your head start bleeding and your body feels weak. "hey! i'm really sorry-" he walks towards you but suddenly you fell to the ground and he catch you "oh my! please hold on a little longer, okay?" he said that and took you to the hospital.