Light and Dark in one

There once was a boy, a boy that was born half demon, half goddess. His parents was both the heir to their races throne and one of them would be the future's leader over all clans.

Not wanting their child to get involved in the war, they both decided to hide him away until the war was over and they all would be able to live happily.

That did not happen as the gods, the boy's grandparents found out about him and he was forced to decide a side. Not being able to choose between his father and mother, where to stay, the father betrayed his clan to be with his family and for the boy to choose a side where both would be able to be a part of his life.

When it came out that the strongest warrior of the demon clan and the child of both sides had chosen to fight for the goddesses, the demon king got furious.

He ordered his second son to kidnap the boy and since then, he has never been seen again.

That lead the parents to the boy rebellious and the two gods, for the first time, fought side by side to punish their children.

That's when they got on their long journey not to only break the curse, but also to find their child who had been said to be frozen in ice to live until someone let him free from inside. Not to mention it must be melted with hell fire from a demon for it to work.