Drizzle olive oil in a pan and add minced garlic to infuse the oil with garlic aroma.
Add onions and stir-fry until translucent, then add cabbage and napa cabbage and stir-fry together.
Add salt and continue stir-frying. Once the vegetables have softened, add imitation crab and oyster sauce, and stir-fry.
Add perilla leaves and black pepper, and stir-fry just until the perilla leaves are slightly cooked.
Divide the stir-fry into four portions, make a well in the center, and add an egg.
Cover the pan and cook on low heat until the egg is soft-boiled.
Serve over rice.