Grill Kajin is a small restaurant serving Japanese-style light meals near Daimyo in Fukuoka. Omurice, hamburg steak, and katsu curry are the main dishes, and the lunch set also includes fried items and napolitan. The restaurant is on the fifth floor, and customers order from a Korean menu by scanning a QR code. The lunch set is limited to 10 people, and the waiting area is very small, so waits can run from 30 minutes to an hour.