The World God Only Knows (神のみぞ知るセカイ?, Kami nomi zo Shiru Sekai) manga series is written and illustrated by Tamiki Wakaki and have been serialized by Shogakukan in the manga magazine Weekly Shōnen Sunday since April 9, 2008. The series follows the high school student Keima Katsuragi, who had mistakenly accepted a contract made by the Demons of Hell, and is now forced to capture all of the escaped spirits in the city with his life on the line.
Currently chapters 1 to 106 have been complied into eleven tankōbon volumes in Japan by Shogakukan, with the first volume released on July 11, 2008, and the eleventh released on December 17, 2010. As of December 25, 2010 (2010 -12-25)[update], 125 chapters have been released in Japan.
The series is licensed in South Korea by Haksan Culture Company. It was given a simultaneous publication of the first two volumes of the series on August 2009, with a limited edition supplement for each.