Devilman

A once hapless boy Akira Fudo gets the opportunity of a life time gain the strength, speed, and abilities of an overpowered demon.

For this book, I'll be using Devilman from all the mangas and the Devilman Crybaby anime.

Warning: This will contain massive spoilers for the mangas and Crybaby anime. Also this will contain some gorey content as well.