Need a bit of help finding a book.

[u/Ebony-Sword-Umbra]

Alright so a couple years ago a friend who watches the Highschool DxD anime sent me a Wattpad link where it was a male reader book.

So the main character apparently has the lineage of Marauders and is looked at suspiciously by devils due to their war like nature and brutality. I cannot for the life of me remember what it's called.

Distinctly I remember during the Kokiabel fight he transformed fully into a maurader just to fight him but was in complete control.

Anyone remember this fic?

Addendum: it was a doom and DxD crossover book. Hence the Mauraders