Kazuya is staying with his aunt, whom he has admired since childhood, while he is job hunting. However, he can no longer focus on his job hunting due to Ayumi's sex appeal, and instead spends his days secretly peeking at Ayumi in the bathroom or while she is changing clothes, and masturbating to fantasies. One night, Kazuya can no longer resist seeing Ayumi in a yukata kimono, and he ends up having sex with her...