Add oyster sauce (2 parts), allulose (1 part), and perilla oil (1 part). Rinse kimchi lightly.
Finely chop the kimchi, onion, and green onion.
Heat cooking oil in a pan and sauté the onion and green onion.
Add the kimchi and stir-fry together.
Add tuna and stir-fry, mixing well.
Add rice and stir-fry evenly.
Season with soy sauce, sugar, and pepper.
When all ingredients are well mixed, transfer to a bowl and serve.