I was assigned to supervise new graduates joining our company, with Marin-chan being one of them. At first, she obediently followed my guidance, but gradually her attitude began to change. During work hours, she appeared submissive and compliant, but the moment quitting time arrived, she suddenly transformed—her demeanor shifting as she began acting like a full-fledged dominatrix. The striking reversal of roles, where the mentor becomes the subordinate, is truly captivating.