As much as I love his art style, this plot is extremely idiotic. BTW I have a feeling that he switched from NTR to incest the day when his series about gyaru sister got super hyper popular.
Well that end sucked but at least the guy was ruthless in his revenge, I guess. Not that her father will care, Imo if the guy wanted revenge then he should just have married his daughter and then poisoned her father and put him into an asylum or something like that and made him live in hell for the rest of his life.