Keunmam Halmae Sundaeguk is a 24-hour Korean restaurant near Seokchon Lake in Songpa-gu, Seoul, serving sundaeguk and bone hangover soup. The menu also includes hwangtae hangover soup, gopchang, pyeonyuk, and noodles, with generous portions of meat. It stays open around the clock, so you can visit early in the morning or late at night, and suyuk gukbap is available to order. The food is at the level of an ordinary franchise.