Highschool DxD: Dragon's Ascent

It's not often you get a second chance. Even less often that your second chance involves you being sent into a world where mythology is real and devils roam the world. Even less is that world being an anime you have watched before. That's right, I have been transmigrated into Highschool DxD. So, how does one survive in the world of Dragons, Gods and Boobs? Trough breaking the system of course! Because when life gives you a chess board you flip it over. Note: I do not own the cover nor do I have any claim over it