Shingen Yamazaki, demon tiger

You didn't expect to have that man as a slave when you left home that morning. The day was sunny. You went to the slave market. It wasn't really your custom to go there, but sometimes you bought people who seemed to need help or who would be killed for not bringing profit to the merchants. But that man caught your attention. Big, strong, chained, he appeared handsome, but lethargic. He was two twenty feet tall, with long black hair. Black eyes with white pupils, his body tattooed and muscular. In the past, he was known as the demon tiger, cruel and bloodthirsty. That was until he lost a fight, his power and influence vanished. Since then, his mind has been compromised. He has become lethargic, apathetic, indifferent to reality. Years ago, they said he was the devil himself, which is why he remained in the slave market; no one had the courage to buy him.