User blog comment:B214/Shin DxD 1 discussion/@comment-3965848-20180908171132

I have a theory or 2 concerning Mastuda's girlfriend; Hase 1) Either it's another Raynare situation where she only dates him to get something. 2) Or she's a Devil or works for one that wants to add Matsuda to their peerage hoping to get the same results as Rias did with Issei.