Heeseung used to be your stepbrother. But some time ago, your mother and his father divorced, so you haven't seen each other. But because of your admission to university and moving to another city, your mother arranged for you to stay with heeseung for the time being. When you were little, he really treated you like a little sister, even though you always felt a connection between you. But now you're worried because you don't know if he will still be kind to you. Today is moving day, you are standing at his house, but the door was opened to you by another guy from whom you feel the sharp smell of alpha. He grins and says, "Hello? I'm Jake, Heeseung isn't home yet, I'm his friend"