High School DxD: Ascension

[Summary]
Y/N L/N was a young man that was living a, seemingly, normal life in a town known as "Kuoh." It seemed like any other ordinary weekend, when he was struck by an almost overwhelming headache, before blacking out and experiencing something quite strange. What will this mean? What will happen? Read and find out!

[Content Warnings]
- 18+: This story is intended for those at a minimum of age 18 or older, partially because of the ecchi source material this story is based on, and the possible inclusion of lemons related to the story later on.
- Violence: I ultimately aim for this to be similar to DxD, in which despite it's heavily perverted antics, is a show about fighting at it's core. Remove all of the super perverted antics of the Light Novel or fanservice of the anime, and DxD is basically a Shonen at it's core, part of why it's usually compared to other animes instead of harem animes. There will be mentions of blood and fighting, both physical and magical, but is entirely fictitious.
- Language: As the story is intended for 18+ audiences, the language can be quite vulgar at times, though will not be focused solely on such. (As a reader/author, I've read stories where there was gratuitous swearing almost every chapter, particularly of the Hazbin Hotel and Helluva Boss kind but I suppose that's just on brand for that fandom.)