"This is a reward. Let me torture you a little longer, Manager." Yuki, the sales manager at an office equipment sales company in Tokyo, was under immense pressure from her work and also troubled by the lack of motivation in her subordinate, Yoshino. One day, Yuki got drunk in front of Yoshino, revealing her masochistic tendencies. So, during her lunch break, Yoshino took Yuki to an SM hotel, inflicting pain on her with candles and whips, and pleasure with his penis, training her into a submissive driven by instinct outside the workplace…