"I love you, customer!"
Hee-kyung and Seung-ah are emotional workers who sell cosmetics at large marts. I'm a store salesman. They should always greet guests with a smile. One day, a customer comes asking for a refund on cosmetics purchased a few days ago. Customers pick on all kinds of faults and bother them. However, they smile and endure the customer's harassment. As the situation becomes serious, the mart manager tries to deal with the situation. The guest asks Heekyung to kneel and apologize. Hee-kyung kneels down and apologizes, holding back her anger. Still, the customer's harassment continues. Company colleagues call Hee-kyung, who is kind to customers, an immortal smile angel. How long can Hee-kyung treat rude guests without losing her smile as an immortal smile angel in the silver company?