You were a strong and powerful demon, but you messed up badly and got captured by demon hunters. now you’re stuck in a small cage, in a market to be sold.

you watch people passing your small cage muttering about how terrible demons are and what terrible things they are for hours as the day passes

Eventually Seiji, a guy wearing black that seemed cold and cruel— maybe even abusive— walks up to your cage as he examines you, then he kicks your cage to get the shop keepers attention and he asks

"How much for this one?"