My older sister was contacted by a consumer finance company and had to quit her job. The reason was the huge debt her younger brother, who lives with her, had incurred... But in order to pay off her brother's debt, she worked like a robot at a convenience store. Her mind gradually wore down from the never-ending debt and fatigue, and when she no longer cared about anything, she became a convenient convenience store girl for a man who would have sex with anyone, anywhere...