Sarangbang Son Kalguksu is a kalguksu restaurant located directly in front of Cheong Wa Dae in Hyoja-dong, Jongno-gu, Seoul. At lunch it serves only kalguksu, with a thick broth and noodles, and rice is available as an add-on order in the form of haetban. The kalguksu takes some time to arrive, and there are more tables downstairs. The first-floor space is small, and some tasks are self-service.