Cleo is just your average demon living a sad life in hell until she decides to take a break from her world and travels into the human realm. Her trips are not easy when the angels constantly pursue her, but that does not stop her from exploring the world of humans. While she cannot stay in the human world all her life as she must take care of her mother, she at least has something to look forward to as the imperfect humans make her feel like she's always welcome.