Cut the pork belly into bite-sized pieces.
Chop the onion and green onion.
Put the pork belly in a pot and grill until golden brown.
Add the onion and green onion and stir-fry together.
Add red pepper powder and minced garlic, then stir-fry.
Add water, soft tofu, and soup soy sauce, then bring to a boil.
Season with salt and pepper.
Beat an egg and add it to the stew, then boil once more.