Grand Spirit Blade Supernatural & Extraterrestrial DxD Aeon Millennium Genesis Storm: The Legend of The Strongest & Most Powerful Beings in All Existence / Legendary Heroes & Heroines of The Supernatural Realms & The Vast Extraterrestrial Galaxies is a fan fictional story based on High School DxD. File:Placeholder File:Placeholder This is a Fourth Multi-crossover series. The main crossovers featured with High School DxD is