So-Hyeon works in a jewelry shop, "Primo Amore," located inside a department store. She has a goal of being in a passionate relationship with someone before reaching the age of 30. Unfortunately, she has her eyes on her colleague WooJin, rumored to be a player! WooJin keeps his distance from everyone (including her). In her frustration, she seeks out her part-timer MinTae for advice, but MinTae confesses to her and ... (Source: Hour of Lunacy)