Put a pot of water on the stove to boil.
When water is boiling, carefully lower eggs into the water.
Boil for 7-8 minutes for a soft boil.
While boiling, prepare a bowl of cold ice water to put eggs into after they are boiling to stop the cooking process.
While eggs are cooling, make your sauce! Mix together soy sauce, water, sugar, sesame oil, and green onions, ensuring the sugar has completely dissolved.
When eggs have cooled completely, peel and place them into a container.
Pour the marinade over the eggs, gently stirring to ensure some marinade goes between every egg.
Leave eggs in marinade at least 4 hours. Enjoy!