Thread:Astarothfan/@comment-27841228-20160221152333/@comment-24421137-20160222021326

1. For Highschool DxD it is the original source material. Its just book that you are able to read which gives more detail then the manga or anime combine. manga is basically a black and white comic.

2. Original Video Animation just random stuff that didn't make it into the anime, usually consists of ss's. Google it if you want more information.

3. One cour anime is 12 episodes. Each season was one cour

4. I don't know what you are talking about. Actual talk on these forums and actual people answer them. If you are asking if anyone who is related to the production of Highschool DxD anime is on here no.