Megumi is a beautiful busty wife who finds no pleasure in sex. She only pretends to enjoy sex at night so as not to disappoint her husband. However, her husband and parents have begun to desire children, and the frequency of sex has increased day by day, which has made her depressed. Unaware of her state of mind, her husband tries to cheer up his depressed wife by recommending a massage parlor run by a friend. However, this suggestion turns his beloved wife into a depraved, lustful woman who repeatedly orgasms with porcio spasms...