A recurring sentiment in online forums (Reddit, MyAnimeList, Discord) is that the light novel is vastly superior to its anime counterpart. This sentiment drives significant online traffic to the text version.
The High School DxD light novel series was first published in 2010 by Ichiei Ishibumi and Miyama-Zero. The series was initially published by Shōgakukan under their Gaitakuban label, but it later moved to Fujimi Shobō's Dengeki G's Magazine. The series has since become a massive success, with over 20 volumes published to date. high school dxd light novel online