The world breakers

(abused/neglected/betrayed team RWBY x Doomslayer's son reader x crossover)
"We are more then slayers.We are the stuff of nightmares that will hunt you for eternity.We'll beat you,grind you,mash you into pulp.
These land houses beasts more fearsome then any on the multiverse.You'll be facing blades,guns,fangs and hide and claw.You will be devoured.Tear down our banners if you can,we will replace them with your heads.
The sentinels have gathered.We bring fury,a storm of terror,misery and slaughter.We are war.WE ARE DOOM"-The king,the prince and two fearsome generals of the night sentinels
The Doomslayer became the king of Argent D'Nur he had a wife and a son.But she passed away giving birth to his son Y/n.Despite what the Slayer went through it didn't stop him to raise him like him and instead another slayer he called him "The world breaker".When Y/n came to age he took his father's place temporary until he return from a mission of his.During the Slayer's absense Y/n achieved countless deeds that made him loved by his people and feared by his enemies.One day four knights were on patrol duty and found four girls under attack they did not hesitate to save them.Once they did they took them to their prince.Once their wounds were healed the girls known as team RWBY they told Y/n their tragic backstory leaving Y/n with one thing to do.Take care of them and become stronger.Perhaps even become lovers