Rei was struggling with her husband's debt and turned to her brother-in-law, Isao, for help. But Isao refused—instead, faced with Rei's beauty and voluptuous body, he threatened to only assist her in exchange for sex. Unable to resist, Rei succumbed, her heart captured by the long-forgotten pleasure, her face glowing with bliss and ecstasy. Witnessing her helpless surrender, Isao found himself consumed by growing desire, unable to restrain his lust any longer.