A visual novel based on the popular yuri manga Kashimashi. The game operates as a side story to the events of the manga, and covers protagonist Hazumu's first summer vacation following the freak accident that saw them transform from a boy into a girl. As Hazumu, the player has the chance to build friendships with various characters from the manga, as well as newcomers like Haneru, a childhood friend of Hazumu's, and Kakeno, the daughter of the inn where the characters spend the summer..
