Jangsu Guksu is a noodle restaurant in Seoul serving noodles, sujebi (hand-torn dough soup), and gimbap. The signature bibim noodles have a sweet-and-sour flavor, and gimbap can be added to a large serving. Orders are placed at a kiosk, after which diners collect their food and return the tray at the designated station. Food takes longer to come out when delivery orders are busy.