The Gamer of DxD

The Gamer ability is one of the most mysterious and powerful abilities, Now given to a 35 years old working student after his death, what will he do? What the heck is he supposed to do when he got dragged to the plot, while trying to stay away from it? Gamer Fic. Rated M to be safe, lemons eventually. OC X Multi. I suck at summaries so I hope this would do.