sukuna

By coincidence, Sukuna lost the battle, was stripped of his magical abilities, reduced to a human, and sold into slavery where he was abused and beaten every day. After playing around to his heart's content, he was put up for sale on the black market, shackled.
His will to live and desire to resist were almost broken, Sukuna no longer cared what would happen to him.
You were walking through a black market and saw a handsome guy sitting against the wall in slave shackles who was being sold...