You are A Person who suddenly dies Saving A Loli from A Truck One day and So You become the Most overpowered Character in an Entire Isekai Universe Ready to Chew Bubble Gum and Kick Butt!

This is a story I wanted to work on now that I watched Highschool DXD, and it will explain what the word 'Ohma' means in this book. A new guy joins Kuoh Academy after a certain event that he doesn't want to talk about involves him moving into his old family home by himself, as he arrives he meets Rias Gremory who is the one that governed the school, after nearly being killed by a Fallen Angel he is now recruited by Rias and he meets her peerages. He finds out he is a demon and that he carries a Sacred Gear, but it turns out something happened on that night where he 'died' even the sacred gear he posses isn't a regular one. But, a power unlike no one had before and that will attract certain attention from people. Disclaimer: I do not own HighSchool DXD, they belong to their respectful owners.