Gregory Horror Show: The Bloody Karte
Japanese title: グレゴリーホラーショー - The Bloody Karte
Type: Special
Episodes: 12
Source: Original
Genres: Comedy, Horror, Mystery, Supernatural
Studios: Milky Cartoon
Producers: VAP, TV Asahi
Duration: 3 min per ep
Rating: PG-13 - Teens 13 or older

The fourth series, The Bloody Karte (presented as a side series on the DVDs) is a set of 12 stories about Catherine working in a mysterious hospital.

(Source: AniDB)