Hanzo got a job, but relationships didn't go well, and he became a recluse. A year passed, and he was still living his life as usual, when one day his aunt Reiko came to visit... Hanzo, who is sexually uninhibited, ends up having a relationship with her through a strange turn of events, and becomes obsessed with her, as if to release all the frustration he has felt up until now. The two spend their days drowning in pleasure, greedily seeking each other out whenever they find an opportunity, drenched in sweat. And then, as Hanzo continues to indulge in his infidelity with Reiko,...