User blog comment:B214/High School DxD Hero Discussion/@comment-3965848-20171023105905/@comment-3965848-20171024112726

They have dubbed characters to have accents so maybe, depends if they're aware she's French but even the it's not 100% guaranty. For instance, since Devil's and Angels have a medieval-like culture, most of them should sound like British instead. Even foreign characters like Asia don't have accents.