A Devil's Bargain

Summary

I found a pair of male incubus twins at the black market, but because I was short on cash, I could only afford to buy one.

So, I chose the younger brother, the one with the better physique.

But he didn't like me. He wouldn't cooperate in bed, constantly ran away, and would sneak back to the black market to complain to his twin brother:

"I don't want to stay with that woman at all. She's ugly and broke. I'm only going to suffer if I stay with her."

His older brother sat in the center of an iron cage, the heavy chain around his neck rubbing his skin raw.