Remove moisture from the tofu and cut into bite-sized pieces.
Drain the oil from the canned tuna using a strainer.
Blanch the fried tofu in boiling water briefly, then remove excess water.
Thinly slice cucumber and onion.
Place tofu, tuna, fried tofu, cucumber, and onion in a bowl.
Season with salt, pepper, and olive oil. Mix well to finish.