Mitsumi, a former student with a wild past, has settled into a quiet life as a devoted housewife. However, her peaceful routine is shattered when her husband is sent away on a long-term business trip, leaving her alone and craving intimacy. With her sexual desires reaching a breaking point, an unexpected opportunity arises when her sister-in-law asks her to look after her teenage nephew, Kazu-kun, while the family goes on vacation. Mitsumi sees this as the perfect chance to satisfy her mounting urges, deciding to seduce the naive, studious boy under her roof.
Initially, Kazu-kun is entirely focused on his studies, remaining oblivious to Mitsumi’s suggestive behavior. She begins by subtly teasing him, revealing glimpses of her lingerie, and eventually dropping all pretense by exposing herself entirely in his presence. While he remains hesitant at first, her persistence successfully awakens his dormant desires. As the tension mounts throughout the day, the dynamic shifts from a simple favor into an intense, private encounter. Mitsumi’s plan to initiate a casual affair quickly spirals into something much more demanding than she anticipated as the young man sheds his innocent exterior.
When night falls, Mitsumi makes her final move, entering Kazu-kun's room to finally claim his virginity. The encounter proves far more explosive than she expected, as she inadvertently unleashes a hidden, insatiable side of her nephew. Far from being a one-time event, Kazu-kun becomes obsessed, repeatedly demanding her attention and refusing to use protection. He insists on finishing deep inside his lustful aunt, filling her with his seed time and again. This intense JAV-style encounter highlights the dangerous consequences of a lonely housewife testing her boundaries with an impressionable, eager young man who has finally discovered his own carnal potential.
