Boil eggs in boiling water for 10 minutes, then cool them in cold water and peel off the shells.
Mix soy sauce, water, sugar, cooking wine, minced garlic, chopped scallions, chili powder, sesame oil, toasted sesame seeds, and spicy chili peppers to make the marinade.
Place the peeled eggs in a container, pour the marinade over them, and let them marinate in the refrigerator for at least 4 hours.