Ittetsu and Obijin are seniors and juniors of a former colleague, and even now that the company has separated, they are still in contact with Mame, and they are close enough to have a couple with each other's girlfriend. One day, Ichitetsu, who lived with her, is kicked out of a big fight. The obijin has inherited his parents' house from his parents, and Ichitetsu decides to stay for a while ...