Yuujou Chuudoku Shoureisha

Synopsis

Ryouichi and Tsukasa have been friends for a while and have quite a strong bond. Unaware of the anatomical difference, Tsukasa believes that they are a boy and decides to use the men's restroom with Ryouichi. Ryouichi discovering that Tsukasa has the anatomy of a girl and takes advantage of the situation, creating a special bond with Tsukasa.