This fanfic is stolen the real name is reborn in flames. You can find it on fanfiction.net its been dropped for a while now don't bother reading it here. This thief is even trying to get people to pay for patreon.
Mind helping another unfortunate soul? There's a DxD story called DxD New Hero or something that also stole from FF. Net, and it's really bad if someone joins their P-word just to pay for a free story, the original title is A Demon Lord's Hero by Fahad09 on FF. Net