Mom's Touch Pizza and Chicken Gwanak Sadang Station Branch is a fast-food restaurant near Sadang Station in Seoul that sells ssai burgers and chicken. The ssai burger contains a large chicken patty and lettuce, and the french fries come out crispy. The store is divided into the first and second floors, and the second floor has window seats and a kiosk. Food can take more than 20 minutes to arrive after ordering.