Aoi has a sexual fetish for getting extremely excited by licking. That's why she married the owner of a long-established candy store three years ago, where she could always lick candy. However, her husband, who runs the candy store, is having financial difficulties, and he accumulates debts, which eventually lead to him being unable to repay them. The man who had been lending him the money then tells her that if he can't repay them, he must let him hold his wife just once. The husband hadn't had sex with his wife for a year due to the troubles of running the store, but she was in the prime of her life and had a strong libido. So, reluctantly, he offers his wife to him, hoping that it will help her release her sexual desire and repay his debts. However, due to the immoral nature of their affair, the wife becomes addicted to the other man's cock and becomes intoxicated with pleasure, unaware that her husband is watching her...