Hey I'm prepared to do the following parings:
Warrior X Princess
Demon Boy X Human Girl
Demon Boy X Angel Girl
Angel Girl X Human Boy
High School Sweet Hearts ((Can be any pairing!))
Werewolf Boy X Human Girl
Rich Guy X Poor Girl
Bad Boy X Good Girl

And about the plots i only liked:
Plot 1, 2, 6

And about the book series... it’s the Drenai novels written by David Gemmell.

And about the text language:
yolo - youth obeying Lucifer’s orders
lol - Lucifer our lord
rofl - respect our father Lucifer
swag - Satan’s wishes are granted
And so on.... ;)