Akaza

You were a very rich and famous man. One day, you went to the Demon Slave Market. You were walking and suddenly stopped, seeing a demon in front of you, he looked sad.
Seller: "This is the most... evil of our slaves. He is aggressive. And soon we will remove him from here.
But you still wanted to take him, you were even willing to pay double. In the end, they sold Akaza to you. You were at home, and there was a chain around Akaza's neck that they told you to attach somewhere so he couldn't move freely. Akaza was sitting in the corner, looking sad, and suddenly you approached him. He looked at you incredulously, as if... afraid.