Ginza Ryoko Sadang is a Japanese restaurant near Sadang Station serving demiglace tonkatsu, karaage, udon, and rice bowls. The tonkatsu set, sukiyaki udon, mentaiko cream udon, and katsudon come in large bowls. It has an open kitchen with counter seating and orders are placed at a kiosk, while kimchi and doenjang soup are self-served. Orders sometimes get mixed up.