A university student's first part-time job is at a convenience store. Although she starts happily, she avoids the old man who works with her... She tries acting out climax even though she doesn't want to. One night, they end up working the same night shift. A university student who has been taken advantage of by the old man's tenacious love play reaches climax. The old man's sex technique makes her cum multiple times during her convenience store shift, and her university life becomes neglected...