Tomoya, a nephew, is staying at his aunt's house because it is close to the university he attends. Although it is only until his uncle's long business trip ends, Tomoya's desire to live alone under the same roof with his aunt, whom he has admired for a long time, only grows. Finally, he sneaks into the dressing room and commits the outrageous act of masturbating using his aunt's freshly removed panties as a stimulant... but unfortunately, his aunt finds him...