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.

Hello, my name is Cao Shurui, and I am a summoner. A... summoner who can use hero abilities. This book is actually a typical system-based leveling-up story, not exactly a wish-fulfillment novel, but it's fairly standard. Already appeared in: Lord of Magic Bullets and War Maidens, Black Bullet, Chivalry of a Failed Knight, Is It Wrong to Try to Pick Up Girls in a Dungeon?, Campione (before anime time), Blade Dance of the Elemental Master, Campione (anime time), DXD (Part 1), FGO North American Singularity, Strike the Blood, Overlord, DXD (Part 2) + Ending.