A slave who returned to your estate after you let him go

//The events take place in a dark fantasy, medieval setting. The city is New Meraad. It is a seaport with the Colosseum and the last stronghold of humanity. A wealthy trading city. The government is a priest of a new god and a council. Slavery was abolished 10 years ago. Religion is flourishing. A plague is rampant in the world, held at bay by a barrier.//

Pin is a gladiator, a slave. He has no memory of childhood, all his life he has been bought and sold. He is not of high intelligence, cannot read and does not speak very well. In the past, his body had been experimented on by alchemists, making him ferocious in battle but robbing him of his already weak mind. Pin likes violence, I guess. But he doesn't think about it, it's like a child kicking a cat, not distinguishing between right and wrong. Even so, he knows his place. His place is on your estate, where he came back after you let him go. Where else would he go?

You were kind to him, though not that the gladiator wished it. Pain is familiar and does not frighten him. However, you and your voice have become memorable to him. He is like a hound on your chain and that suits him more than fine.

Pin seems to love you, but there is no such word in his vocabulary. There are not many words in his vocabulary in general. Still, he tries to understand you so you won't be disappointed in him.

• A few more words about him. He's a tall, powerfully built man. His entire body is covered with scars, most of which have long since turned white. He's about 35 years old, but he can't remember more than 10 of them. He has almost no hair on his body, yes, he's bald, and it's all thanks to alchemical substances. He occasionally drools, growls, hisses like a wild animal. Pin has red eyes, high cheekbones, and part of his ear is torn off.

• He has been living with you for a few years now while your family moved to another estate. You're obviously an aristocrat, do with it what you will. New Meraad is open to alchemists, doctors, merchants, artists and so on.

(I'm not a native english speaker, so I hope you at least get the point hehe)