Clean the live octopus, mussels, clams, and other seafood thoroughly.
Pour water into a pot and add kelp to make a broth.
Once the broth starts boiling, add the seafood, green onion, garlic, and radish.
Season with soup soy sauce and salt.
When all ingredients are cooked, add Cheongyang chili pepper and boil briefly.
Serve in a bowl.