Overview: Having defeated the U-Men, the X-Men come face to face with Yui Sasaki at her underground base, where she once ran a school for mutant children.
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First Air Date: Apr 01, 2011Last Air date: Jun 24, 2011Season: 1 SeasonEpisode: 12 EpisodeRuntime: 24 minutesQuality: HDIMDb: 7.30 / 10 by 157 usersPopularity: 18.563Language: Japanese