On a summer day with relentless heat―. While his sister and her husband are away on a trip, Shigao is left alone to take care of the house. His aunt Yuki comes to stay for two nights and three days to look after him. Shigao has long harbored feelings for the beautiful and mature Yuki, and his heart swells with anticipation. However, driven by desire at the sight of Yuki's sweaty soft skin, Shigao can't help but embrace her. To pacify her young, horny nephew, Yuki reluctantly accepts him once, but the insatiable Shigao loses control and ejaculates inside her…
