(Grand Blue + Date A Live + Oregairu + ...)

Looking at the dilapidated Yorozuya before him, Tengu Ginyu fell into deep thought...

"Why are there still weirdos in this world?!" Tengu Ginyu put the Time Driver into the Four-Dimensional Chrysanthemum, plopped down in a chair, and burst into tears.

I only know what I know, and I'm only interested in what I don't know. I'm Gogenunuwen, just an ordinary explorer. Volume 16: Jujutsu Kaisen Volume 15: Code Geass: Lelouch of the Rebellion Volume 14: Interlude Volume 13: Naruto Volume 12: Kamiyama High School F4 Volume 11: Interlude Volume 10: JoJo's Bizarre Adventure Volume 9: Interlude Volume 8: Demon Slayer Volume 7: Interlude Volume 6: Fullmetal Alchemist Volume 5 [Sixty Setsuna]

Academy City. A magical city with a population of 2.3 million, filled with countless individuals possessing extraordinary abilities. Standing at the pinnacle of that city are true monsters. The first, Accelerator. The pinnacle of existence, possessing the strongest and most evil ability to truly control the direction of all energy, the strongest and most all-powerful monster in Academy City. He will face encounters with countless worlds that transcend time and dimensions. This is a world where countless imaginative beings converge, a world of magic, a world of technology, and all sorts of people and things will mingle within it. And then, the first will experience all of this firsthand. "—Interesting, then let me see how your so-called justice actually works, heroes?" Accelerator, who has degraded himself to a villain, the most vicious and evil anti-hero, what kind of encounters will he encounter on this journey beyond dimensions? The strongest and most evil one-way dark hero awakens here. A crossover anime/manga fanfiction, the protagonist is Accelerator from the original work, striving to recreate the feel of the original A Certain Magical Index.