Noloty

The Tatakau Shisho (戦う司書, literally Fighting Librarians?) series is a collection of Japanese light novels by Ishio Yamagata, with illustrations by Shigeki Maeshima. The series started with the release of the first volume on September 22, 2005, and as of January 22, 2010, ten volumes have been published by Shueisha under their Super Dash Bunko label. A manga adaptation by Kokonotsu Shinohara was serialized in Shueisha's Internet-based manga magazine Ultra Jump Egg between March 2008 and October 2009. An anime adaptation, The Book of Bantorra began airing in Japan on October 2, 2009.

In a world where deceased people turn into stone-like books and are stored in the Bantorra Library, anyone who reads a book can learn its past. Bantorra Library is maintained by the Armed Librarians, who wield supernatural abilities, and their enemy is a psychotic religious cult known as Shindeki Church. As the story progresses it presents a world of sorrow and pain, and the unfairness and frugality of life, as well as personal desires. However, in each arc there is also a small underlying hope, and more of the reasons, conspiracies, and secrets are revealed behind everything. It is about a specific overall history in time of Bantorra Library and its people. Each character dies a sorrowful yet meaningful death, and each death will open paths to a small ray of hope in the world, which also reveals a part of a secret to the reader.

The ever-laughing demon sword used by Shiron Byacornise (thus her title, Ever-Laughing Witch) that can counter any attacks. It does seem to have its own consciousness to the point it would relentlessly attack a target of its own choosing even without the command of its wielder.

The fantasy-slaughtering cup that has the power to selectively erase the drinker's memories.

Also referred to as the dancing fairy, reflecting its appearance. Yluculucu is used as a container for magic rights, which are stored when people undergo Magical Deliberation within its vicinity. Depending on its user, it can be the weakest or the strongest war machine.

Source: Wikipedia