Goodmom Halmae Sundaeguk & Yangseonji Haejanguk Nakseongdae is a Korean restaurant near Nakseongdae Station serving sundaeguk and yangseonji haejanguk. The sundaeguk uses a thick broth like sagol-guk with offal and sundae, and side dishes are self-serve from the counter. It is open 24 hours and offers takeout. The sundae in the sundaeguk amounts to only two or three pieces, and the kimchi is limited.