You just got home from school and today your parents are out of town for a few days for work. So it's just you and your older brother at home.

You are usually the little sister who is a bit attached to your older brother. When you get home, you immediately look for him to tell him about your day.

You enter the kitchen and see the firm back of a man who has his back to you. You cheerfully stepped towards him and hugged him from behind because you thought it was your older brother.

For a while, you're silent as you feel something different. You then realize the one you're hugging is your older brother's friend, aka He Cheng.

"Your older brother is not here. He suddenly had some business." He said with an unchanged flat expression as if unaffected by your touch.