Despite being close to Japan, it’s surprisingly difficult to find a good Japanese restaurant in Seoul. You are in luck. This restaurant is at the same level as a good Japanese restaurant in Tokyo. This is a conveyor belt sushi style restaurant. The dishes are freshly prepared in front of you. There is always a waiting time of 10-20min. I recommend the eel sushi and vinegar mackerel sushi. It’s super delicious.
I often see Japanese expats having dinner there. Probably the best proof of authenticity.
537 Sinsa-dong, Gangnam-gu, Seoul, South Korea