Prepare all the ingredients.
Heat perilla oil in a pot and sauté minced garlic and green onions.
Pour in anchovy broth and bring to a boil.
Once boiling, add soft tofu, perilla powder, zucchini, and onion.
Season with soy sauce for soup and salt to taste.
Simmer over medium heat until the ingredients are cooked through.
Finally, add Cheongyang chili pepper and pepper powder, and let it simmer a bit more.