Ayumi hopes moving into a new apartment will revive her husband's interest in trying for a baby, but he remains indifferent. Fed up, the horny busty wife devises a plan to conceive with the young man next door instead. She confirms that he shares her husband's blood type, waits for her fertile window, and seduces him braless. Soon she is sweating through daytime adultery, deliberately taking his semen in hopes of becoming pregnant.