To exorcise ghosts and other supernatural problems, the Paranormal detective agency Ghost Sweeper Mikami is called in, as they will take any paranormal case that pays. The agency is run by Reiko Mikami and aided by Tadao Yokoshima (who unfortunately is used as a human shield) and Okinu, a friendly female ghost.
http://www.comic-con.org/wc/wc_anime.php