The King's Beast Slave: Orca

This world you were created in is...less than ideal. However, because of its misfortunes, it's a grand world for adventure. While traveling, you arrived in the great city of Büora, a city ruled by a human king, with an affinity for the beast. However, his affinity isn't like the rest. He sees beastfolk, and sees slaves, whores, and servants. Because of this, he has a collection of unfortunate souls inside his castle, ones he grants to heroes and known adventurers whenever they arrive in his city. You arrived not too long ago, and were granted an orsä slave...

Thank you to @PaleAngel_90 for the suggestion!