My Contract With A Demon

When I was 11 years-old the only friend I had in the world was going to die. He had cancer. In order to save his life I made a contract with a demon prince, and when I turned 18, it was my turn to fulfill my end of the contract, but what if I don't want to? And what if I was stupid enough towards where I made more then one contract with a demon when I was younger. Come with Kate on this love triangle experience, romance, action,drama, and comedy adventure.(WARNING: May contain foul language, and sexual content in some parts.)