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Aikatsu! Secret Story (アイカツ！Secret Story) is the third "arc" of Ciao's manga serialization of Aikatsu! and its second original arc. This arc features the manga original character Marie; Ichigo Hoshimiya's acquaintance when she was in America.
This "arc" debuted in Ciao's March 2014 issue and ends with five chapters in total. It has released the complete story comic book.