The Royals of the 7 kingdoms

The story is about a person. that person is Skai Astaroth (aka you, its a gender neutral name, so all people can read). They were a young royal, demon royal, heir to the throne. Until, one day, on his 17th birthday, his parents told him to leave. To run. The angels had attacked, because all other kingdoms thought the demons were evil, as they had to have blood to survive. Not a lot, but they still needed it. This is a story of how Skai goes on a mission to find seven of the young royal heirs to try and unite the kingdoms, all whilst making sure no one finds out what and who he is.
A/N sorry if the story ends up horribly. Its my first story.