Aika, a beautiful wife who lives a happy life with her gentle husband, Kosuke. - She promised she would make a baby when she returned from a business trip and was waiting for her husband to return. - One day, ex-boyfriend Yuji who appeared in her husbands absent house was threatened and criminalized because of a past accident. - A chastity belt attached to the gap of absentmindedness at the climax. - Yuji who knows that her sexual desire is strong in her Aika is strongly abstinent, and her sexual desire is limited to her husband who has returned. - She cant stand the aching uterus and accepts the cock of the lowest man before her husband is there and conceives ...