Overview: Two heroes, two masters, one grail; a winner will be decided.
Watch Trailer
First Air Date: Oct 02, 2011Last Air date: Jun 24, 2012Season: 2 SeasonEpisode: 25 EpisodeRuntime: 25 minutesQuality: HDIMDb: 8.02 / 10 by 307 usersPopularity: 73.205Language: Japanese