The World God Only Knows (or Kami Nomi zo Shiru Sekai) is a manga by Tamiki Wakaki, several anime adaptations and a light novel spin-off. It is a supernatural harem comedy about an avid bishoujo gamer Keima Katsuragi. A spirit hunter Elsie contacts him to ask for help in catching evil spirits called "loose souls" by conquering the hearts of his female classmates.
The World God Only Knows (or Kami Nomi zo Shiru Sekai) is a manga series written by Tamiki Wakaki about a highschool student, Keima Katsuragi, who is an avid bishoujo game player. A spirit hunter Elsie contacts him for his help in catching evil spirits called "loose souls" by conquering the hearts of his female classmates. There has been an original spin-off light novel as well as several anime adaptations.
- The World God Only Knows (manga), by Tamiki Wakaki, April 2008
- The World God Only Knows - God and the Devil and an Angel (light novel), by Mamizu Arisawa, May 2009
Completely original story separate from the series. - The World God Only Knows 2 Prayer and Curse and Miracle (light novel), by Mamizu Arisawa, May 2010
- The World God Only Knows (OVA), directed by Shigehito Takayanagi and produced by Manglobe, September 2010
- The World God Only Knows (anime, 12 episodes), directed by Shigehito Takayanagi and produced by Manglobe, October 2010
- The World God Only Knows II (anime, 12 episodes), directed by Shigehito Takayanagi and produced by Manglobe, April 2011
- The World God Only Knows: 4 Girls and an Idol (OVA), directed by Shigehito Takayanagi and produced by Manglobe, September 2011
- The World God Only Knows: Tenri Arc (OVA, 2 episodes), directed by Shigehito Takayanagi and produced by Manglobe, October 2012
- The World God Only Knows: Goddesses Arc (anime, 12 episodes), directed by Satoshi Ousedo and produced by Manglobe, July 2013
For more information, see the wikipedia page, the World God Only Knows wiki, or the ANN Encyclopedia.