After five happy years of marriage to Kenji—a financially stable and devoted husband—Fumino has been desperately trying to conceive. Despite their consistent efforts and passionate encounters over recent months (which have often left her unsatisfied), pregnancy remains elusive. Their domestic bliss is interrupted when Kenji’s parents move in with them following a forced relocation. The tension builds until one afternoon while Fumino and Kenji are deep in lovemaking,
Kenji's father catches sight of his daughter-in-law’s evident frustration. Sensing her yearning for something more than what her husband can provide sexually, he ambushes Fumino as she steps away to fetch water. Despite uttering desperate pleas of 'no,' her body offers only weak resistance against his massive cock and powerful thrusts. He drives into her deeply before unleashing an explosive cumshot straight into her womb.
Though logic dictates she should resent this intrusion, Fumino's body betrays her will; it craves the intense pleasure previously unknown to her, the satisfaction Kenji couldn't deliver. Soon after, she discovers she is pregnant! Her overjoyed husband cannot believe his luck, but the story leaves us wondering about the destiny of the baby growing inside... Will this secret affair change everything?