Cure Sky and the Strongest Power

Synopsis

Skia Head — the true culprit who killed Kaiser and etched false memories into Kaiserin — reveals himself to be Dark Head, the embodiment of Undergu Energy, and departs with the wounded Kaiserin. Sky and the others charge into the Undergu Empire in pursuit. Wing and Butterfly take on the countless Ranborgs lying in wait, Majesty stays behind to hold off a giant Ranborg that appears further in, and it is Sky and Prism who reach the deepest point. Targeting Sky as the "vessel" of Undergu Energy, Dark Head pours the energy into her and tries to control her. But thanks to Prism, who believes in her, Sky comes back to her senses. Sky reaches out a hand to Kaiserin, saying, "Won't you be my friend?", and Kaiserin manages to accept. Dark Head reappears in the form of a great serpent, but, now reunited as five, Sky and the others face him without fear.