aaahh so thats who the creepy woman showing up was! That story is super popular, Oiwa was a beautiful woman that got disfigured by some kind of facial cream that was given to her by a woman that was in love with her husband. After she was disfigured, the husband wanted nothing to do with her, but divorcing because your wife is ugly wasn't possible, so he paid someone to rape her so he could divorce. That obviously fails terribly, Oiwa dies, curses everyone and becomes a vengeful spirit. I like how this manga brings famous ghost stories but has that wholesome feel. Wholesome horror yay!
Is it just me or are a lot of asian ghost stories just failed attempts to convince men to not be monstrously evil to women?
In the old time, women are all treated like shit and have no value or opinion or whatever, so it's only reflecting real life ^^; . I guess it's even worse in Asia with the influence of Confucianism, patriarchal system or something. (Im Asian btw xD)