War of the Biju: Kakashi Hiden: Battle in the Sky!

It has been a year since the Fourth Shinobi World War had ended and a new era of peace has dawn in the Shinobi World. Technological innovations from the Land of Waves are flooding the new Shinobi Union...but one of the older era's most persistent threats has decided to make a grand return to threaten everything...with Kakashi caught right in the middle!