Prophets and Nephillims

(An Spn themed highschool au)
Joshua Cohen isn't your ordinary highschool student. He wasn't your ordinary human either. In fact, he's not human at all. He's part angel. No he doesn't get a fancy halo and large wings like his sister, Kakabel. Though he can see hers. He struggles through highschool with bullies and depression. Paired with the assholes on angel radio.
Kakabel is a human/demon/angel hybrid. Making her one of the most powerful creations next to Amara, Eve, and God. She was ordered to be killed but once the angels figured out what she was they figured it was better to have her with them then against them. Kakabel is loyal to heaven, her bother and the Winchesters. She has large black amd white wings and yellow eyes. (Guess who her demon dad is )
And lastly Oliver Kingsley was a regular kid. Up until a prophet went messing. He was next in line so he took the prophets spot. But now there's demons on his ass and angels standing before him.