After his mother’s passing left him to manage the household diligently through schoolwork and chores alone,
Akio finds a new beacon of beauty in his father’s new wife: Kimiko. This stunning woman showers Akio with genuine affection and kindness. Drawn into her captivating presence—her curves and alluring charm—dark desires begin to bloom within Akio. He decides his handsome stepmother is too precious not to possess; he drugs Kimiko to claim her in a private moment.
However, the sedative isn't strong enough! Kimiko awakens right in the middle of Akio’s passionate encounter. Despite her initial weak resistance against his determined advances, Akio refuses to let go of his prize. Upon regaining full consciousness, Akio knows he has committed an unforgivable act. In a fit of guilt or obsession, he locks himself away, causing immense worry for Kimiko and her husband.
When his father leaves for a business trip, Akio finally emerges from confinement, demanding more time with his beautiful stepmom. Kimiko reluctantly agrees, setting a boundary that this will be their final session. But as the scene unfolds, that 'last time' stretches into an unforgettable eternity...
