Hero Reborn
She fought beside him against the great darkness, an ancient evil that destroyed their lands, killing many. The Great Hero gave his life to defeat the evil, but the evil would return. Now the Sorceress must live forever to find the reincarnation of the great warrior who defeated the darkness. She serves the king, thinking the young prince is to be the hero. But soon learns that the hero isnt the prince. But two siblings! The twin daughter and son of King's farmhands! The Sorceress is shocked, but takes in the twins to train them.
-This is a Polyamorus relationship, the sorceress will be with the twins

Son of Evil
He was the future son of the underworld! He was the second most powerful creature in all of Hell! Yet, somehow, someway, his father felt he needed a sitter when his father would go away on 'business trips' through Hell! Worse, his father didn't plan to leave him with a resident of Hell, worried that he might be able to 'scare' them into allowing him to do as he wanted. Instead, his father had planned for a woman who was not from Hell to watch over him!
What arrives is a beautiful holy creature from a realm not quite of Heaven. His father knows this woman wells and expects her to take good care of his son while he is away, to teach him a few things he'll need to know if he wants to keep his stature intact when he finally takes the throne of Hell.
She is kind, but has a dark side that comes out when the Prince of Hell disobeys her, and he's not quite sure if he hates or enjoys her punishments