Amity is having a hard time at school, so she asks Luz to come over and help her. They end up spending the night together and that night is what changes everything...

"I own you? What the hell is that even supposed to mean?!" "Everything that I am," the demon stated calmly, "is yours to do as you please. The blood contract bounds me to you." "I don't...I don't understand. You're a demon, and you're mine?!" "Until the day you die, I will happily satisfy your every need." "What's the catch?" The demon growled, smirking slowly, "I'll tell you on your due date."