Yami to Boshi to Hon no Tabibito

The work that Anime "Yami to Boshi to Hon no Tabibito" made a game for adults for PCs of the release Anime than ROOT in October, 2002.
For Manga, drawing was published serially in "monthly Comptiq" (Kadokawa Publishing) in Aya Sakurai. From October, 2003 to January, 2004, it was broadcasted as TV Anime.

Eve which was the manager of Yami / the Yama library left the work of the manager of the library to Lilith of the older sister, and oneself has begun to play in the world of the book. But Eve can be in the world of the book only until a birthday of 16 years old and cannot talk again. And neighboring human beings had the evil to love Eve if natural.
The world of a certain book. Eve acted in an orphan home and lived as girl / Jil loved by children. However, one day Jil stick with a knife by boy / GAL which is going to monopolize her love, and girl / Ritsuko which watched the spot loses mind. When Ritsuko woke up, both Jil and Gal disappear

Look at an adventure animated cartoon "Yami to Boshi to Hon no Tabibito" part.