
SPOILER
ok, so from what I've read the dad was being controlled by a demon. If you remember in the beginning the girl that replaced out MC was a demon. She put the dad under some hypnosis spell so he could not think straight. He has always loved his daughter but did not know how to express it because of how he was raised. Anyway, when the daughter died the father finally got out of the hypnoses and could not bear his daughters death and the all the wars happening all across the country. He makes a deal with a demon to turn back time to when his daughter is (well I forgot how old she is but ya) and that's why he remembers some of what happened in the past.
I'm about to beat the shit out of this princess!! who the fuck cares if you used to be blind blwablwablwa fuck off she was fucking nice to you when you were kids!!!!! (/TДT)/