Yami To Boushi To Hon No Tabibito

Yami to Bōshi to Hon no Tabibito (ヤミと帽子と本の旅人, translated as Yami, the Hat, and the Travelers of the Books), also known as Yamibō/Yamibou for short, is a Japanese adult visual novel published in December 2002 by Root. A 13-episode anime series produced by Studio Deen aired between October and December 2003.