After six years at this company, Ryo found herself as the only female employee left. While she enjoyed her work, she was growing increasingly frustrated with her stagnant career, her incompetent colleagues, subordinates, and superiors. Then, she started noticing strange stares directed at her, and to her surprise, a cardboard box arrived at the office containing a collar and adult toys. The next day, she encountered a male employee sneaking into the women's restroom and ended up being begged to train him. Though initially hesitant, Ryo found herself relishing the power dynamic when she stepped on the male employee as he requested, awakening a dormant sadism within her...