Yami to Bōshi 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. Although the characters and their relationships remain basically the same in the game and anime, the storyline is quite different.