Task 17: The Ashu Mirror (Task.17 アシュの鏡 Tasuku Sebuntīn: Ashu no Kagami) is the seventeenth episode of GoGo Sentai Boukenger. It introduces the fourth of the Negative Syndicate rivals of the Boukenger: the ancient Ashu Tribe. It also introduces Eiji Takaoka, a Watcher who fights against the Ashu threat.