Ore ja Nai to Dame desho?

"Don't think of me as a little kidforever, okay?” This is a request from his childhood friend, Yamato, who will be a college student in the spring. Rui is a university student who has started sharing a room with his childhood friend, Yamato, who will become a university student in the spring. He is from the same facility and has always missed him since he was a little boy. However, one night after they started living together, Yamato suddenly confesses his feelings for Rui. I thought I was in love with him, but there was no way I could see him as an object of romantic interest after all these years! I thought so, but he has grown up to be a much more mature man than he is, and every day he is swept away by Yamato's sex appeal!