Cut the pork belly and kimchi into bite-sized pieces.
First, sauté the pork belly in a pot.
Once the meat is cooked, add the kimchi and onion and stir-fry together.
Add chili powder and minced garlic, then mix.
Add water, tofu, and green onion, and bring to a boil.
Check the taste and season with salt and pepper, then simmer for 10 more minutes.