Asami runs a local beauty salon and lives a modest but happy life with her husband... but recently her husband has been having trouble getting an erection. After hearing his story, he reveals that he has a cuckold fetish and begs her to have NTR sex with him. Asami is confused, but ends up being cuckolded by a customer at the salon, and is made to cum and creampied by a dick other than her husband's... The happy, lovey-dovey couple gets addicted to perverted play... and falls into depravity!