Chika Arimura is a 27-year-old young female CEO who, having inherited her father's business foundation, now manages assets worth 5 billion yen at a remarkably young age. However, on a rare day off, she causes a traffic accident. Concerned about her public image, she attempts to settle the matter privately with the man involved, but he repeatedly refuses, making unreasonable demands. Desperate to return to work, Chika is shocked when he demands sexual favors as a condition for negotiation. Once she gives in, she becomes subjected to intense humiliation and depraved training. As the process unfolds, she is drawn deeper and deeper into a world of shame and submission.