The Enchanted Fortress!!

The Enchanted Fortress is the fifteenth episode of the Reign of Lord Tetsei Saga and the twenty-second episode of Sazeku-Ba!

Overview
Sayuri gets them to go into the fortress once they escape. However, this is what Lord Tetsei wants. When they reach there, Tadashi and Riku stays behind and interacts in battle with Caboa and Minamo.