Yui and Kyojiro's younger brother and his wife and Hibiki and Kyoichiro's older brother and his wife are in fierce conflict over the inheritance of their father-in-law, Tokujiro. Hibiki, who has always looked after Tokujiro in the countryside, seduces him under the guise of caring for him, in order to avoid handing over the inheritance. When Yui finds out, she fights back, saying that as a woman she cannot back down, and seduces Tokujiro. What will be the outcome of this heated battle between the beautiful women to care for him?