A sundae-guk restaurant sits on the first floor of Shindongho Building near Yaksu Station in Shindang-dong, Jung-gu, Seoul. It serves naejang sundae-guk and ppyeo haejang-guk, and the broth is refillable. The restaurant has been in operation since 1979 and is open 24 hours. Yaksu Sundae-guk is nearby, which invites comparison.