Hwapyeong Kalguksu is a Korean restaurant in the underground shopping arcade of an apartment complex in Samseong-dong, next to Cheongdam Station, serving bajirak kalguksu and bossam. The bajirak kalguksu comes with a clam base, the mandu-guk uses beef bone broth, and the menu also includes wangmandu and suyuk. The restaurant also sells naengmomil, cold buckwheat noodles, and accepts orders for solo diners. A line forms during lunch hours.