Nadai Tonkatsu KATSUMA Tengo shop is a tonkatsu restaurant in Osaka that serves set meals such as rosu katsu and hire katsu. The rosu cutlet is juicy and tender, and you can choose white rice or black rice. Ordering a set meal gives unlimited mentaiko from the container at each seat. The miso soup and seasoning are salty, which is heavy for anyone avoiding strongly seasoned food.