Hibiki's mother, Fuuka, knows everything about her son, to the point where Breakin and Adeline decide she must be a ninja! Then, when Hibiki's class takes a field trip to a ninja castle, Fuuka is possessed by a Dance Stone. It will take Flash Beat everything he has to restore his mother to her old self!

Hibiki and Breakin find the final Dance Stone while on a class trip to Niki Niki Ninja Village. But Maito shows up to interrupt, and reveals that his true identity is nothing less than the Brave Beats' nemesis, Choreo!