Sander sides but as centaurs

In a world where centaur are owned as livestalk, Thomas Sanders is just looking for something to do with his free time. His friends suggested he get a job. He's honestly not sure how that led to him buying a sick centaur. Even though he's been fighting for centaurs to have freedom since freshman year of high school, he somehow finds himself buying one centaur after another, rescuing them from abusive and/or neglected situations. Eventually he finds himself with six unique centaurs.