7th story CD Märchen is the fifth major album released by Sound Horizon on December 15, 2010 in Japan. After almost two years of silence since the release of Moira, Ido e Itaru Mori e Itaru Ido and, subsequently, Märchen were announced to be released in the later half of 2010. Märchen is a direct continuation of the events in its prologue single, Ido e Itaru Mori e Itaru Ido, the fact evident in the seamless connection between Ido e Itaru Mori e Itaru Ido's last track, Kanojo ga Majo ni Natta Riyuu and Märchen's first, Yoiyami no Uta. In continuation of the tradition that had begun with Moira, Märchen was also known for vast differences between its limited edition and regular edition packaging. The limited edition came in a hardcover case that, when completely opened up, forms the kanji for seven(七). In place of a normal lyrics booklet, the limited edition included a 77-paged hardcover book that was meant to represent the Fairytales of Light and Darkness first mentioned in Ido e Itaru Mori e Itaru Ido.