Manghyang Bibim Guksu Hwayang is a Korean restaurant near Hwayang Intersection in Gwangjin-gu, Seoul, serving bibim guksu and janchi guksu. The bibim guksu, its signature dish, centers on a sweet-and-sour sauce and chewy noodles, served with warm broth on the side. Dishes come out quickly, and the broth is self-served. Tables are placed close together, so leaving is awkward when the restaurant is full.