Okinawa Dining Ryuka Okinawa Main Store is an izakaya in Okinawa. It serves a range of Okinawan dishes including goya champuru, hirayachi, purple sweet potato tempura, and mozuku kakiage. Reservations can secure a window-side semi-private room or Japanese-style seating, and space for a stroller is provided. The food is generally salty and the interior is loud.