Clean the oysters thoroughly.
Soak the rice cake slices in cold water.
Bring anchovy and kelp broth to a boil in a pot.
Once the broth boils, add the rice cake slices and cook.
When the rice cakes soften, add the oysters.
Season with soy sauce, minced garlic, salt, and pepper.
Slowly pour beaten eggs into the soup.
Garnish with chopped green onions and crushed seaweed.