Everyone thought it was done for Gehenna. But, things can never keep on going well. When Satan comes back from Gehenna, what will Rin and Yukio do? How will they face their father? What's the mystery hidden behind the gate? "My time is up. The only thing I can do is telling you the secrets of everything you wished to know," he annouced, his lips parting with a peaceful smile.

During the fourth great ninja war, everyone is tensed to the fullest. People are dying. Everyone is trying to do his best. Then, a little surprise may happen and change that story... to another different story..