This one is unique in that the author made an entire alternate version where the guy doesn't get screwed over, proceeding to become a couple with his childhood friend without getting cucked by his father. It is purposefully named Natsuki -Rewrite- because it is quite literally redone, but officially. So, in isolation, this isn't even netorare.

https://exhentai.org/g/1868593/5edb6ed0e3/

The actual Netorare original 2-part galleries are separate. He technically ends up with his childhood friend in this version too but only years after his father had his way with her, having to die so his son gets a chance, raising his own step-sister born from his father and childhood friend.

https://exhentai.org/g/1652907/bd6eaf8b9c/
https://exhentai.org/g/1356996/4295e49840/