Hina and Yuuji, newlyweds, move to an apartment managed by Kita, a kind landlord. Eventually, Kita's kind "meddling" crosses the line, and things escalate to the point where he sneaks into Kita's room when he's away, folds laundry, and sneaks in his erotic underwear. On the other hand, Hina feels unsatisfied with her night life and spends her days secretly masturbating next to her husband. Her landlord sees through her frustration, and, unable to resist his clever invitation to ``practice to satisfy her husband,'' Hina gradually opens her body. His meddling kindness drags the new wife into a swamp of pleasure...