Yukata kyôshi: Hokenshitsu no tanoshimi

浴衣教師 保健室の愉しみ (original title)

Synopsis

High school student Akira spies on Michiru, a female school doctor, and Satomi, an art teacher, who are intertwined in the school nurse's room. Later, Akira is called by Michiru and ends up playing with his young body under the guise of a physical examination...