Prepare 1 can of tuna and drain the oil into a pan.

Chop 1/2 onion finely and slice 1 green onion and 2 green chilies.

Heat the tuna oil in a pan and sauté the onion and green onion until softened.

Add minced garlic, red pepper powder, sugar, soybean paste, red pepper paste, and water to the pan.

Bring the mixture to a boil, then add the drained tuna and stir well.

Add sliced green chilies and sesame oil, then stir to combine.

Prepare rice balls by mixing cooked rice with a small amount of sesame oil and shaping into small rounds.