Iroha, the bride, will teach cooking to her father-in-law, Kojiro, who came to Tokyo to qualify as a cook. - As she continues to teach, Kojiros body touch increases, and Iroha remembers the hot flashes of her body. - She cant stand it and indulges in masturbation in the bathroom, partly because she doesnt work with her husband, but she sees it in Kojiro. - Her crotch cant control her aching due to the intense and obscene sex that her husband doesnt have, and her body becomes more and more sensitive due to the humiliation of her father-in-law who does not know her stay.