Wash the eggs thoroughly.
In a pot, add soy sauce, water, sugar, mirin, minced garlic, green onion, and spicy green chili. Bring to a boil.
Once boiling, add the eggs and simmer over medium-low heat for 10 minutes.
Peel the boiled eggs and marinate them in the soy sauce mixture for about a day.
Before eating, place the eggs and some soy sauce over rice.