Yuugen Kaisha
English title: Phantom Quest Corp.
Japanese title: 幽幻怪社
Type: OVA
Source: Original
Episodes: 4
Status: Finished Airing
Aired: Aug 25, 1994 to Feb 25, 1995
Duration: 29 min per ep
Rating: R+ - Mild Nudity
Studios: Madhouse
Licensors: Geneon Entertainment USA
Genres: Action, Adventure, Comedy, Supernatural
Themes: Super Power, Vampire

In a country where companies are categorized into many subdivisions and corporations, only one of them is a ghost corp—the Phantom quest corp. When otherworldly supernatural phenomenon threatens the city and its populace, Ayaka Kisaragi and her employees are on the job to fight any and all supernatural menace.

(Source: ANN)