Chuchun ga Chun

From Bliss:

For the sake of his late Grandfather, Daisuke Ootaka decided to attend Torioka University, joining the baseball team. Upon arriving however, he quickly regrest his decision. Besides the fact that his dorm is across a mountain from the univeristy, and he has to room with the captain and vice-captain of the baseball team, he is force to deal with the captain, Suzume Morino (also known as Chun), crazy antics and wild behavior. However when he epxresses his wish to leave, Chun blackmails him with a picture of a force kiss threatening to expose it to the entire school if he leaves!