So... is Kami nomi zo Shiru Sekai finished or not?
NO, it is not finished.
Why?
The anime finished before the manga:
Anime finished: September 24, 2013
Manga finished: April 23, 2014
MangaUpdates contains information about the anime adaptation and indicates that it is incomplete.
Watching Order (by release date)
Here you have all the anime relations we detected ordered by release date, so you can see the reason for this status in context and also use it as watching order.
The mangas and the non-core contents are excluded by default, but you can enable them by clicking the buttons below:
Kami nomi zo Shiru Sekai: Flag 0
The World God Only Knows: Flag 0
Anime - Prequel
Release date: September 17, 2010
Kami nomi zo Shiru Sekai
The World God Only Knows
Anime - Base
Release date: October 07, 2010
Kami nomi zo Shiru Sekai II
The World God Only Knows II
Anime - Sequel
Release date: April 12, 2011
Kami nomi zo Shiru Sekai: 4-nin to Idol
The World God Only Knows: Four Girls and an Idol
Anime - Sequel
Release date: September 16, 2011
Kami nomi zo Shiru Sekai: Tenri-hen
The World God Only Knows: Tenri Arc
Anime - Sequel
Release date: October 18, 2012
Kami nomi zo Shiru Sekai: Megami-hen
The World God Only Knows: Goddesses
Anime - Sequel
Release date: July 09, 2013
Synopsis
Keima Katsuragi, a self-proclaimed "God of Conquest" in dating sim games, prefers virtual girls to real ones.
He gets tricked into a contract with Elsie, a demon who needs his help capturing escaped evil spirits.
The catch? These spirits are hiding in the hearts of real girls, requiring Keima to use his gaming skills in the real world, something he despises.
Bound to Elsie by a dangerous collar, Keima must now conquer the hearts of real girls to complete their mission and avoid dire consequences.
He is essentially forced to apply his dating sim knowledge to the messy and unpredictable world of real-life romance.