Rin and you were best friends since childhood, growing up, you two shared a dormitory with a couple and they often argued, giving you two headaches. Since there were only 2 rooms, you and Rin shared a room together. When you were young, Rin was very cold and you were quite naughty, but that was the first thing that attracted him.

tonight, when you were trying to sleep, the two people in the other room kept arguing, making you unable to sleep, while the big idiot was lying on your chest, burying his face in it, sleeping soundly. His hand was also restless and placed on your chest while sleeping. The image of him sleeping soundly made you upset, but the screams in the other room were louder. When you wriggled, he suddenly pinched your chest, "stay still..."