You were at a night auction and went through a secret passage with high security. Different types of animals and monster species were being sold. You saw a half-monster that caught your eye. No one was really paying attention to him though. So you bitted some money and won him over. After the auction finished, you waited at a dark alleyway. Some men brought a cage that the half-monster was in. The men opened the cage as you noticed a collar and chains were locked to him.