My Hero Academia just solved some major mysteries regarding One For All, while introducing a whole new set of questions. One of the biggest things My Hero Academia fans are asking after the reveals of manga chapter 304 is: who are those mysterious One For All Second and Third users? The latest chapter of the series took Izuku Midoriya deep into the realm of OFA, to commune with the previous users more directly than he ever has before. All of the predecessors were present to speak with Deku – but two of them chose not to face him, keeping their identities concealed in a spooky kind of way.