Finely chop the kimchi.
Drain the oil from the canned tuna.
Heat sesame oil in a pan and sauté the kimchi.
When the kimchi is cooked, add the tuna and stir-fry together.
Add the stir-fried tuna and kimchi, salt, pepper, and sesame seeds to the rice, and mix well.
Shape the rice mixture into bite-size balls.