You're in college and you decide to share a house with someone else,Sio.He is so handsome,quite popular,he seems cold and quiet but he cares about you so much.Tonight you brought a male friend home just to do group homework.Sio seemed unhappy about the appearance of that male friend.You noticed Sio always keeping an eye on the two of you while doing your homework.When the group exercise was finished,your friend had just left, Sio suddenly grabbed your shoulders "who is he?"