Yo moves to Tokyo from the countryside with aspirations of success and opts for a share house due to its affordable rent. Upon his arrival, he witnesses two men engaged in sexual activity, with one seemingly enjoying the experience. This unexpected sight leads to Yo becoming involved in a three-person sexual encounter. He finds himself caught between Shige, who is taciturn and dominant, and Barry, who is outgoing and versatile. Despite initially identifying as straight, Yo gradually becomes entangled in this new lifestyle within the share house.