The Sacred Blacksmith 1x12

After his humiliation during the conference Siegfried finally snaps and dispatches a horde of demons to destroy the City of Housman. While Cecily and Aria join the Knight Guards in dealing with the demons, Luke decides it is time to settle things with Siegfried. However, even Luke may not be strong enough to stand against Siegfried's Demon Sword of Darkness, at least not without help.