Nao feels happy living a peaceful life with her regular husband. - But night life was the only thing I couldn't get used to. - At that time, her playboy uncle Takuo comes to her house... - She gets carried away by his constant provocations and ends up having a relationship with her, thinking it's just a one-time thing. - She was made to cum countless times by the delicate fingering, the bold tongue technique, and the piston that rubbed against the vaginal walls, which was completely different from her husband's. - Since then, Nao tries to refuse Takuo's persistent invitations, but...