@pl3b yeh it’s definitely gonna be some alternate timeline version of him that never learned any of the lessons he is learning now that make him a better man.
Edit - its gonna end up being some whole stealth meta-commentary on otaku and the valuation of the virginity/purity of their waifus where we end up rooting for the dude who actually focused on improving himself instead of the incel-mindset version of him that only values possession of her first time.
So this is either him from an alternate timeline who got fucked up, or this is an entirely different person, a stalker who can also time travel and wants mika himself? I don't think it's the guy who raped her in the first couple of timelines.