User blog comment:Blacknight499/High School DxD light novel in the U.S/@comment-30006382-20160925010107/@comment-26345952-20160925013834

These teo are the well known translators of Light Novels espcially for the DxD main story. Code Zero translated from 1-17, Zx from 18-21. Code Zero is currently taking the translation for Vol. 22 while Zx updates his translations for Shinmai Maou no Testament.

Baiscally they are the reason why we have both spoilers and the light novels in general.