Dream Hunter Rem (ドリームハンター麗夢, Dorīmu Hantā Remu) is an anime OVA series released from 1985 to 1992. The first episode was originally released as a hentai OVA which contained a few pornographic scenes. Due to high popularity, the production team decided to release subsequent videos in the non-hentai anime market. The first video was later re-released as "Special Version", removing all pornographic scenes and adding a new episode.
Rem Ayanokōji is a "dream hunter," a person capable of entering the dreams of sleeping people and fighting the demons causing nightmares. The stories have their base in supernatural and standard horror, with action scenes and mystery thrown in.