The series follows the marital decay of Shu and his beautiful wife, Haruka. Frustrated by Shu's inability to get her pregnant, their sex life becomes a source of anxiety. The narrative plunges into raw cuckoldry when a dominant, virile colleague enters their lives. He begins a relentless sexual pursuit of Haruka, initially forcing himself upon her before her resistance crumbles into pure, unadulterated lust. Viewers witness Haruka's complete sexual transformation as she's repeatedly filled with her lover's potent seed in graphic, hardcore scenes. Her body is ruthlessly used, her holes stretched and creamed, and her mind broken to his will. She is gangbanged by his friends, her pussy and asshole becoming public property while her helpless husband is forced to watch. The series climaxes with Haruka, her womb finally swelling with her lover's child, completely abandoning her pathetic husband to become the permanent breeding bitch for her new alpha master.