Five hundred years ago, a man known only as Yuudai, "the great hero," created the art of ninjitsu. Recently reincarnated, he has amassed an elite force bent on eliminating all inferior ninja. Only the untrained but amazingly talented Ricky Feeple stands in his way. But can he stand against the man who created the very style he uses? Normally, being the hero of the book would guarantee Ricky's victory, but once he discovers Yuudai's true agenda, he may decide to join the conqueror instead!