Isabell's Dad is a Hunter. Which means he hunts (Demons, witches, ext.) and her Dad captures a demon to interrogate, his name is Kason. He keeps him downstairs in the basement for a while and she knows he's downstairs. They both have never seen eachother, and when her dad one day has to run Errands and tells her to feed him. She brings food to him multiple days in a row and one day the Demon's master comes into the basement and Saves Kason from her dad. it kills her dad and that leaves her and Kason. he has a soft spot for her but can be cruel.