Marugame Udon Jamsil Lotte World Mall Branch is a self-service udon shop in Songpa-gu, Seoul, selling udon and fried items. It offers nikutama and kitsune udon, and the noodles are served chewy. Customers line up to order, receive their food, and then sit down, so the line moves quickly and food comes out fast even when the wait is long. Lines are long on weekends and in the evening.