The waters are warming up around Japan and many of the fish coming to market now are lean like katsuo. Here is a sashimi platter at our home, Izakaya Sakamoto. The big fish in the back is Tokyo Bay aji, iwashi, lean katsuo, kisu, and shiriyake-ika. This tsubugai sashimi was served at a izakaya specializing in shōchū, Bettako. One…