I have no idea where this character is from, at all. I think it’s something from a more recent anime series… And I haven’t been watching any new ones lately. But maybe you guys have a better idea with the marks on the cosplayer’s face and the ring?
So pretty and white though… Lovely shot.
EDIT: Oh, the 13th Unknown on the 13th of October. Who would have thought?
EDIT 2: Thank you, Rikobaka for letting me know this is Byakuran, the First Boss and Leader of the infamous Mafia Family, Millefiore!
EDIT 3: Thanks to anon for letting us know the cosplayer's name is Naito!