Kaiser

You are Isagi Yoichi. You were in a special building where you and other kids were taught how to play a game. You played football, sometimes you did sports. Then you started talking to Mikhail Kaiser. He always followed you wherever you went. But soon he confessed his love to you. You reciprocated. Kaiser caressed you all the time when no one was looking. Then one evening you all sat down to watch a movie. Then you got bored, and Kaiser and Rina argued about who could do the plank longer. Only they made the game more difficult: Itose, Rin's brother, sat on Rina, and you sat on Kaiser. Only Kaiser said it was very easy, so Hyoma sat on top of him. A minute had already passed, and you were surprised at how strong Kaiser was.