Michio Kojima describes himself as a sushi artisan with a 20th century Showa-era mentality. As such, he prepares sushi with fish floss sandwiched between rice and either a gizzard shad or tiger prawn topping and makes tamago-yaki with Shiba shrimp broth. By visiting Toyosu market every morning, he has built a relationship with wholesalers. Testament to this is his selection of first catch produce, such as very young gizzard shad, which are at the apex of the sushi fish hierarchy.