User blog comment:B214/Volume 23 discussion blog/@comment-49.206.213.205-20170325210039/@comment-49.206.213.205-20170325214628

yeah that part i know, but in the afterword of volume 21 the author said " Allow me to change the subject again, this section is about the other world [ExE] [5]. The setting has finally been revealed. High School DxD will not be replaced by [ExE]. " so i was thinking that he might be starting a new LN with that title or so.