User blog comment:B214/Volume 21 info & spoilers/@comment-3965848-20160726065224/@comment-29740738-20160913022655

The Idea of Humans knowing the existance of these supernatural beings might start a war and it is also very intriguing and i think that plot will only exist in a fanfictional novel not here

i know one fanfic novel that uses a plot where humans know the existence of these supernatural beings its a storybook Illustration by an artist named Chaos217 from Deviantart the same person who made a mech version of Issei & Vali's Balance breaker

it follows the main story of Highschool DxD sprinkled with mecha and world war  between Humans who wants to rid the world of these beings and a militaristic force which enforces the co-existance of Humans, Gods, Demons etc.