High School DxD: The Beast of Chaos

The normal thing in these fanfics would be to kill the MC or magically send him to a few days, months or a few years before canon with a system, right? Well, here it's screwed, in this one the MC, we kidnap him and send him to the Great War or the war of the three factions, that's right, this time the MC will be 3,000 years before canon and will not have a system (it fucks me up that mess), nor desires (no shit about having Goku's powers or infinite energy, or any other shit), he will have a power, it's obvious, but it will be a matter for them to find out. Notice that this is my first fanfic, also I don't know English, so I would appreciate it if you could help me, if I forget something or something that doesn't make sense, I would appreciate your comments