In the eyes of the world, the husband is a domineering businessman and his wife is a lewd couple, but at night, their relationship of master and servant is the complete opposite! One day, when her husband's subordinate comes to the house, Nao starts to sexually dominate the subordinate as well... When her husband returns home with the subordinate, she calls him into the kitchen and reverses the roles of master and servant, knocking him out with a handjob and a blowjob! When her husband's subordinate comes home on a business trip, she sluttily tortures him and trains him for creampie sex! The training of her husband's subordinate continues after that... The obscene eroticism of a lewd wife who sexually dominates her husband's subordinate for her husband's sake!