When Honoka lives in her husband's company housing complex alongside her boss's residence—Tajima-san—an unsuspecting affair is brewing. After a year since his wife passed away and with Tajima struggling to walk normally on his own legs due to injury or illness (implied), management sees an opportunity. To pave the way for promotion within Tsuji’s career path at the firm,
Tsuji asks Honoka to step up and provide dedicated caregiving for his demanding superior while he searches for professional nursing help. However, Tajima quickly recognizes that this arrangement offers more than just convenience. Having gone long periods without sexual intimacy and finding himself captivated by Honoka's stunning beauty and ample curves,
he decides to leverage Tsuji's career advancement as a powerful tool of coercion. Tajima doesn't just want companionship; he demands that Honoka become his personal sexual plaything, forcing her into a relationship where she must cater entirely to his desires.