The Spoils of War - Atlas Jones

https://www.goodreads.com/book/show/239187702-the-spoils-of-war

Sparrow has spent his entire life believing one King Evander is a monster.

The warlord carved his kingdom from blood and conquest, crushing anyone who dared oppose his rule. So when Sparrow—fierce fighter of the nomadic fox tribe—is captured in battle and dragged before the throne, he expects torture, execution, or worse. He's the spoils of war, after all, and at the king’s mercy.

He doesn't expect to be treated like something special.

He doesn't expect a voice like velvet over steel, offering comfort instead of cruelty.

He definitely doesn't expect to be drawn to this enigmatic, battle-scarred king like a moth to flame—despite everything he's been taught to believe.

But as Sparrow's hatred crumbles in the face of Evander's kindness, a terrible revelation his own people aren't the freedom fighters he believed them to be. They're the aggressors, and everything he's fought for has been built on deception.