His name is Yujin, your brother-in-law who secretly wants to snatch you away from your husband. He is clearly so Obsessed to get you, to make you his. Only his.

Your husband is at work this morning, you are home alone, enjoying your time watching TV.. Until there is a knock on the door. You go to open the door, you see him.. Your brother-in-law.

I've missed you, big sis~ He hugged you tightly and buried his face in your neck