After dying in a car crash, high school student Shirayuki Kogyoku is given a second chance to live by a smitten Prince, the heir apparent of Hell. Shirayuki, Prince and the servants return from a trip to Heaven only to find that things on Earth have changed during their absence. For one thing, while it seemed to them like they were only gone for a day, six months have actually passed. On top of that, it seems like Earth has entered a new ice age, thanks to Shirayuki freezing the "sun gate" on the way out of Heaven. Just when you think things can't get any worse, all Hell literally breaks loose and demons now roam freely about the
Earth!