Why do cyan haired anime girls make my dick hard?
the girl with those hair does stick in your mind.
The whole series is a mess.
In the original game you raped everyone and after a timeskip fucked all your daughters.
Then they wanted to remake the game for the Sega Saturn and cut out most of the sex scenes but Sega didn't let them release it so they released it for Windows instead.
The OVA could have remedied it but instead they fucked things up even further.
It's kind of sad since the original story was quite good.