Paladin by Onley James

Arseny Lebedev lives a normal life. During the day, he’s a mechanic. At night, he livestreams a fairy tale video game called Paladin. And sometimes—only sometimes—he kills people. But they all deserve it.
Ever doesn’t know his last name. He doesn’t know much of anything. Most of his life has been torture, bought and sold by a woman who calls herself his mother. He’s resigned himself to a life of servitude, until he meets Arsen.
The moment Arsen sees Ever, they’re bonded. Ever is both fragile and feral, willing to defend himself with any tool at his disposal, even teeth. Arsen is color and light, a beacon in Ever’s darkness, as brave as the knight in the game he plays.
Arsen protects Ever fiercely, but just when he feels safe, someone attempts to drag him back to his old life, reminding him that reality isn’t fairy tales or video games. He knows staying puts Arsen in danger. But Arsen insists they’re safer together. Can Ever truly have his happily ever after or is it game over?