6 decades books

Another young adult struck down by a truck is offered a chance at a new life as a summoned [Hero] fighting Demon Lords, but this story doesn''''t follow them! No! Instead it follows Whisper Paws the Demonic Kitty who dragged the new [Hero] out in front of said truck, and who then pounced upon the Angel when given the chance before fleeing off and stumbling into a new world.