Writer Ichiei Ishibumi announced on Sunday that his Daten no Inugami -Slashdog- (The Fallen Dog God -Slashdog-) light novel series is inspiring a manga adaptation that will launch in Kadokawa 's Monthly Comic Alive magazine on December 26. Kikurage , the illustrator of the novel series, is also drawing the manga.

Ishibumi actually wrote the first volume of the story in 2006, before his more popular High School DxD series, and the novel was then titled Slash/Dog . That series only received one volume, before Ishibumi revived the series with a new first volume (seen right) in November 2017, with the full title of Daten no Inugami -Slashdog- High School DxD Universe . Kadokawa published the third volume last December.

Set in the same universe as High School DxD , but years before the events of that series, the story centers on Tobio Ikuse, a high school student still reeling from an incident that caused the disappearance of his childhood friends. One day, he is attacked by beings known as "Utsusemi," but is rescued by Natsume, one of his missing friends. Together with Natsume and another girl named Vali, he races to find out the cause of his friends' disappearance.

Ishibumi and Miyama-Zero launched the High School DxD novel series in 2008, and ended it with the 25th volume in March 2018. The pair then launched the Shin High School DxD novel series in July of that same year, and Kadokawa published the third volume on August 20. Yen Press also published all 11 volumes of Hiroji Mishima 's High School DxD manga adaptation.

The novel series inspired four television anime adaptations in 2012, 2013, 2015, and 2018. Funimation released all four series on Blu-ray Disc and DVD in North America.