In the Oak House lives a cheerful band of roommates. Kido was the last one to join. There he meets Matsumoto, alias "Mom", who forbids anyone to touch his kitchen. Lenny, an American student, who's also an otaku. Akito, an almost mute, four-eyes who rams into a door every time he takes off his glasses. And then there is Shiina, the owner's son, who has a pretty face but an explosive character. They all have very different personalities. It seems that roommates are not always easy to handle... especially when love gets involved!