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1 episode
Yuugen Kaisha: Jiken File 00 - Hajimari wa Ayashiku mo Hanayaka ni
幽幻怪社 事件ファイル00 始まりは妖しくも華やかに
Sinopsis
Prologue episode. The first half features main characters in their chibi forms introducing each other and explaining the premise of the show. The second half features footage of seiyuus working, talking about the show and doing some funny stuff.
Trailer
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