User blog comment:Ariel Saeba/Mythology and Character Origins in DxD/@comment-2.220.207.228-20160329055145/@comment-27232228-20160329210404

I see. Well, if you can make her backstory makes sense why she wants to hunt Elmenhilde then it's fine (especially since most OCs in fanfics I read often has very whimsical backstory why he/she wants to have a hit on the main story characters).

P.S. Please refrain from adding mundane OC details and only add their real-life inspiration info. This post mainly discuss the main story's mythology and origins, which, in my opinion, Ishibumi gives a very good job making them much closer to their original depictions, while adding characteristics specific for the DxD universe.