Kami nomi zo Shiru Sekai: Flag 0
English name: The World God Only Knows: Flag 0
Genres: Comedy, Supernatural
Type: OVA, Episodes: 1
Aired: Sep 17, 2010
Studio: Manglobe
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
Short prologue OVA, bundled with manga volume vol.10.

Elsie receives from Dokurou Skull, hell's branch chief of "counter measures", the task to go on earth and capture evil spirits that have escaped from hell.