Remove excess water from the tofu and crumble it.
Drain the oil from the tuna and set aside.
Blanch the inari tofu pockets in boiling water to remove excess oil.
Mix the crumbled tofu, tuna, mayonnaise, salt, and pepper together.
Combine sushi rice with vinegar, sugar, and salt, and mix well.
Fill the inari tofu pockets halfway with rice and top with the tofu-tuna filling.
Close the inari pockets and place them on a plate.