Finely chop the kimchi.
Drain the oil from the canned tuna.
Add sesame oil to a pan and stir-fry the kimchi.
Add tuna to the stir-fried kimchi, mix well, and let it cool.
Add the stir-fried kimchi and tuna to warm rice, season with salt and sesame oil.
Shape the rice mixture into triangular balls.
Wrap with seaweed.