A beautiful but fallen office lady, Sumire Washimi MXGS-1401, is manipulated and exploited at will by a disliked colleague who exploits her weaknesses.

Sumire, a beautiful office lady, is a somewhat awful woman who looks down on her colleagues, contrary to her appearance. She secretly works at a brothel. Unexpectedly, the person called out for work there is a colleague! Sumire's weakness is exploited, causing her to obey the man who despises her, and she falls into depravity.