No Way! That Serious-looking Wife... Cuckolded by a Flirtatious Door-to-door Salesman Mao Ito

Having purchased the home of their dreams, Mao and her husband were living a modest but happy life. One morning, a door-to-door salesman came to their house. Mao, who has a serious and quiet personality, cannot be rude to the salesman, and so she takes him into her home. "You are really quite beautiful". The compliment is the first she has received in a long time, and it awakens the woman inside her...