It’s been 2 years since the twins grandfather had tried to destroy Gehenna and it’s also been 2 years since Satan showed himself, Rin and Yuikio Okumara have been going on with their lives but have noticed that their haven’t been as many demons as their used to be until they see the Gehenna gate open again. What’s going to happen, is anyone going to come out of the Gehenna gate. Read to find out.