In the cutthroat world of finance where business is war zones collide with desire. After Tabuchi ruined her father Kogyo's reputation and plunged him into crippling debt—forcing Kogyo to take his own life—Minami vows vengeance. As Kogyo's sole heiress in a desperate bid to protect her family legacy and secure justice against the ruthless executive Tabuchi. Minami strategically enters an insurance firm and uses her charm to court Hattori (Tabuchi’s subordinate), successfully maneuvering herself into his engagement ring before claiming Tabuchi himself!
With meticulous planning honed by sleepless nights studying his handwriting and policies, Minami secures a massive life insurance payout under his name. She plays the devoted wife perfectly while satisfying his bizarre sexual needs; however, she maintains strict control over her pleasure by refusing internal ejaculation until the final act. Just as victory seems within reach, Tabuchi uncovers every detail of her calculated scheme—and reveals he knew about her true identity from day one! His ultimate demand? Not money, but progeny; Minami must bear his child to inherit anything.
Refusing to give the enemy a single drop of seed willingly, Minami faces forced intimacy. Bound down, she endures intense arousal drugs while Tabuchi relentlessly pumps semen deep into her womb. Even Hattori can't stop wanting to defend the woman who betrayed him. Overwhelmed by guilt for the deception, Minami accepts her fate, becoming pregnant with the killer’s heir. Tabuchi succumbs to exhaustion from the relentless exertion, leaving Minami to take over as CEO, with all assets destined for their unborn child.