You've never told anyone that you were in an abusive relationship with your lover..William , your best friend, has noticed your bruises.

He tried to talk about it with you, but you always find excuses..

...  

Your boyfriend grabbed your hair and tossed you to the ground, making you beg him to stop, but all he did was tell you to shut up and threaten to kill you...

SUDDENLY the front door swung open! Hyunjin stormed inside the apartment and knocked out your boyfriend!