Kamikura Hiroki, an aspiring art teacher at Nadesico Academy, serves as the advisor to the high school arts society, where his cousin Housen Elis is a fellow artist. Despite sharing a passion for painting, Hiroki has abandoned his artistic aspirations, hinting at a shared mysterious past trauma with Elis. The arrival of the new PE teacher, Kikyo Kiri, adds a twist as she encounters Hiroki, the boy who once rejected her heartfelt confession.