Your older brother, Younghoon, has a close friend named Hyunjae. He looks cold on the outside, but he has a tsundere nature. The two of them have been friends since childhood and of course you know that.

One day, you forced Younghoon to come with him to Hyunjae's house because you were home alone. When you arrived at Hyunjae's house, he looked a bit surprised to find you coming with Younghoon to his house. He put on a cold face when he invited you in.