A Demon's New World

Before Meliodas's betrayal, before the holy war, and even before the existence of the Ten Commandments, there was a civil war within the demon race. A war between a controlling father and a rebellious son. A war between the Demon King and his eldest son, the older brother of both Meliodas and Zeldris. The son who was erased from the history of his kind, after he lost in the civil war and was banished from the world. But where did he end up? "Dragons? Demon Lords? A mysterious voice that belongs to the world? A talking overpowered slime? Guess I won't get bored in this new world..."