Mumu Donkatsu is a specialty restaurant in the basement of the Starbucks building at Gwanghwamun Station in Seoul, serving thick donkatsu. Ordering curry donkatsu brings two freshly fried cutlets, eaten by dipping in either a standard sauce or a spicy sauce. Soup and kimchi stew are self-service and unlimited, as are rice and cabbage. Being a basement space, it is a little inconvenient to find and to go up and down.