Cut the pork into bite-sized pieces.
Slice the kimchi into appropriate sizes.
Add cooking oil to a pan and stir-fry the pork.
When the pork is half cooked, add the kimchi and continue stir-frying.
Season with chili powder, sugar, and soy sauce.
Stir-fry until all ingredients are well combined and flavorful.
Turn off the heat, then add sesame seeds and sesame oil to finish.