What would happen if after sealing Trihexa, a change occurred in the everyday life of Issei? A change that will completely break him, a change that will put him into a new path, a change that would force the entire supernatural world to take him seriously? A change that will affect everyone, and everything in the world...

A man wakes up to find himself inside the world of Naruto experiencing it via a video game. Forced to fight to survive, he sets upon a path of self-discovery, whether to save this world or destroy it. Self Insert. Finished, finally.

An error in the system sent him into the DxD-verse years earlier than intended. What will he do now with all the time in the world before the disaster revolving around Kuoh Academy starts? Follow Kira Rose as his dragon roar shakes the world! DxD-verse and TheGamerManhwa Xover Warning: Godlike!OC. Dragon!OC. OCxSerafallxTiamatxGabriel pairing. There may be additional harem members.

When I died after making my first bad decission I wasn't expecting to be reborn in a world of Devils, Angels, Fallen Angels and Yokai. I wasn't expecting to the be the 'main character'. I wasn't expecting for my life to become a game. I will, however, make the most of this peculiar situation. SI OC as Issei! Badass Main Character! MassHarem! Lemons!