Ginza Ryoko Mapo-gu Office Station is a Japanese restaurant near Mapo-gu Office Station in Seoul that serves tonkatsu and shrimp tempura udon. The tonkatsu comes in a 1.5 size and offers a free size upgrade, and its signature sauce is a demi-glace that carries a slight yangnyeom chicken flavor. The space is small, with single-person tables and large bowls, and orders are placed at a kiosk. The food is generally sweet, from the soup to the sauces.