In each episode, the cast members visit a celebrity's residence and help to sell the belongings that the celebrity wanted to sell. The cast members each take charge of selling a number of belongings through Danggeun Market, an online second-hand shopping portal. When a negotiation with a buyer, who usually is one staying within the vicinity of the celebrity's home, is successful, the celebrity and the cast member in charge of the item would meet the buyer to finish the deal. The cast member with the most number of items sold will be the episode's Selling King. (Source: Wikipedia)