Previously...

Just before Tala moves in with Kai, he sends a warning to flee. The leftovers of Cain's plan is about to plunge Japan into nuclear warfare. That's easier said than done when you and the girl you love have huge, useless wings and are essentially hunted, bit-beast creating aliens. Life was so much easier when all he had to worry about was his past as a Beyblade assassin. (Summary of previous books inside)