Time Out says
Encompassed in glass, Nippon Kai is set on Sukhumvit 53 and specializes in Japanese cuisine and seafood.
Nippon Kai, which combines a restaurant and a market under one roof, is the main source for imported Japanese produce to a number of hotels in Bangkok. Here you’ll find a variety of high-quality seafood like mentaiko (cod roe), uni (sea urchin roe), otoro (fatty tuna belly) and gindara (snow fish) as well as premium beef, pork and Japanese snacks. Dine-in musts include the Engawa Sushi Parade, foie gras matsusaka roll, and the sweet-tangy Japanese tomatoes.
9:53 Community Mall
Sukhumvit Soi 53