HBAD-511 A new wife, Umikuka, whose voluptuous body awakens from the humiliating training with her father-in-law hidden from her husband and who cannot suppress her desires.

Hana lives with her father-in-law at her husband's parents' house. - Unlike her indifferent husband, her father-in-law, who has a glaring sexual desire, tries to touch flowers every time. - One day, Hana witnesses her stepfather taking care of sex toys in his room, and her masochistic instincts are ignited. - Her father-in-law immediately sees through this and ties Hana up with hemp rope, but instead of hating it, he begins to feel it...