Meet Hae-yeong, a woman with a sharp mind for numbers and a zero tolerance for loss in any shape or form. Enter Ji-uk, the neighborhood’s kind-hearted convenience store clerk, who avoids trouble at all costs. Hae-yeong unexpectedly challenges Ji-uk with an irresistible, mind-blowing proposal, and comedic mishaps and heartfelt moments are bound to follow. What could her daring offer be?