Stir-fry green onions in oil, then add chili powder and stir-fry. (If you don't have green onions, just stir-fry the chili powder.)
Add vegetables and stir-fry. (If you don't have vegetables, just add soybean sprouts.)
Add 1 spoon of chili powder and 1.5 spoons of oyster sauce. (If you don't have oyster sauce, skip it.)
Add 600ml of water and bring to a boil.
When boiling, add plenty of seafood and keep boiling.
Add 1/2 garlic, 1/2 sugar, and 1/2 soy sauce. (Stevia and dark soy sauce can be used as substitutes.)
Add kelp and adjust seasoning with salt as needed.
Boil noodles, pour the soup over, and serve.