A call from a consumer finance company to her sister's workplace led to her quitting her job. The reason was the massive debt incurred by her younger brother, who lives with her… Nevertheless, to repay her brother's debt, her sister works like a robot at a convenience store. As the debt doesn't decrease and fatigue sets in, her mind gradually wears down, and when everything becomes indifferent, she turns into a convenience store girl convenient for any man, anywhere.
