Arrival

When meliodas and Elizabeth had a child during the holy war, he had blond hair (like super sayian gohan) he had light skin. But one day the demon king and supreme diety sealed the baby as in a punishment for Meliodas leaving the demon clan and Elizabeth for loving a demon. 1000 years later the infant was released. It landed to Brittania, and meliodas and the group called the seven deadly sins found him.