化粧品会社で働く気弱な部下・山本は、高飛車な上司・柚木れんかから発注ミスの責任を理不尽に押し付けられる。絶望する山本だったが、突然れんかが女子更衣室で同僚の下着に精子をぶちまける動画を撮影。実は彼女は変態ニューハー-フだったのだ！証拠を盾に立場は完全逆転。プライドの高い女上司を社内で徹底的に調教し、執拗な乳首責めとアナル開発で理性を破壊。やがて彼女は快楽に抗えないドMの性奴●へと堕ちていく…

Yamamoto, a timid employee at a cosmetics company, is unfairly blamed for an ordering mistake by his arrogant boss, Yuzuki Renka. Desperate, Yamamoto is then confronted by Renka, who suddenly films herself ejaculating on a colleague's underwear in the women's locker room. It turns out Renka is a perverted trans woman! With this evidence, the tables are turned. Yamamoto thoroughly trains his proud female boss within the company, destroying her sanity with relentless nipple ******* and anal development. Eventually, she descends into a masochistic sex slave, unable to resist pleasure…