He, The One

Leon Spilter originating from a regular earth, a lover of thrills, humanity's greatest mind, Deadpool's unknown brotha from anotha motha, and most importantly the man who caused the apocalypse. Satoru Gojo originating from Jujutsu Kaisen, a special grade jujutsu sorcerer, the strongest human, the pride of the Gojo Family, and most importantly The Honored One. Ryomen Sukuna originating from Jujutsu Kaisen, the strongest jujutsu sorcerer from a thousand years ago, The undisputed King of Curses, The strongest Curse, and most importantly The Disgraced One. Now what would happen if Leon who was already out of his mind was given the opportunity to reincarnate in High School DxD as a combination of these beings while being accompanied by a system? ------ This is an Alternate Universe of High School DxD and every other source material used [Do NOT assume the information you know about High School DxD to be correct in this Fan-Fiction] Warning: The MC will be strong from the start and grow stronger over time Warning: The MC will have a harem Disclaimer: I do not own the story, world-building, or the characters from the original author. My claim of ownership is limited to the original characters I have created and the changes in the story that are a result of the presence of the MC. I do NOT own the cover art! If the original owner sees the cover art and wants it removed please leave a review and once your identity is confirmed it'll be removed immediately.