Clean the pollack thoroughly and cut it into bite-sized pieces.
Slice the radish, onion, tofu, and green onion.
Pour kelp-infused water into a pot and add the radish and pollack. Bring to a boil.
Remove any foam, then add tofu, onion, and green onion.
Season with pepper and soy sauce instead of chili powder.
Finish cooking when all ingredients are fully cooked.