Ghost Slayers Ayashi (天保異聞 妖奇士, Ghost Slayers Ayashi?) is a Japanese anime series created by Bones and Mainichi Broadcasting System, Inc. (MBS). Written by Sho Aikawa, directed by Hiroshi Nishikiori and with character designs by Toshihiro Kawamoto, the series premiered across Japan on 6:00 PM, October 7, 2006 on TBS, in the same time slot previously occupied by anime series such as Blood+, Fullmetal Alchemist and both series of the Gundam Seed franchise. It received its satellite television premiere across Japan on Animax on November 14, 2006.

Originally scheduled to air for 52 episodes, the series' length was shortened to 25 due to its low ratings and ended its run on March 31, 2007.

Source: Wikipedia