Yayoiken Nipponbashi is a Japanese home-style chain restaurant near Nipponbashi Station serving grilled fish set meals, rice bowls, and sukiyaki. The fish sets include salt-grilled mackerel or grilled salmon with tamagoyaki and karaage, and rice can be refilled as much as you want from a self-service bar. It is open 24 hours, and you order and pay at a kiosk at the entrance, then hand the printed ticket to staff and the food comes to your table. The kiosk does not support Korean.