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WikiPedia: Happiness Charge PreCure! http://asahi.co.jp/precure/happiness/index.html http://www.oricon.co.jp/news/2032387/full/ http://www.toei-anim.co.jp/tv/happinesscharge_prec... http://mantan-web.jp/2013/11/28/20131127dog00m2000... https://www.animenewsnetwork.com/encyclopedia/anim...