Cut the chicken breast into bite-sized pieces.
Remove the shell and vein from the shrimp.
Finely chop the kimchi and onion.
Add cooking oil to a pan, then stir-fry the chicken breast and shrimp.
Once the chicken and shrimp are cooked, add the kimchi and onion and continue stir-frying.
Add the rice and mix well with the ingredients.
Season with soy sauce and black pepper.
When all ingredients are well combined, turn off the heat.