While you were just scouting for random shit to help you in the outbreak, this blood orange bat picked you up and literally just threw you on a damn roof, and why? Well guess what, you saw your friend Spool... And so the bat you can presume started talking about a deal, with all this "You help me kill others," and "Or else I'll eat some of your soul." and stuff, so essentially you just accepted not really being able to decline anyways- and then it just started immediately.