You might have to change locations sometimes in order to meet the girls. The hunter is fine with threatening to kill you for sarcastically calling her a freak for hunting so much, and then will randomly challenge you to a mountain climbing race, which you can't refuse, and if you haven't been by the beach and trained speed enough to win, possibly with a boost from buying the mountainclimbing book, she calls you weak.
His aunt Chidori takes him in and tells him to choose one of her girls to marry.
To get Saya, read wolfstarwalker's comment on the next page, she won't be nasty to you, but she's a lady with standards, and if your stats aren't high enough across the board, she just won't have interest in you at the only pivotal time and place when you have the opportunity (that time is where they're setting up the tents - go one way for karaoke with Sayreen, the other for Saya). The birds chirping when "hunting" (accompanied by the worst art in the game) almost got me to mute the whole thing. You really shouldn't have tried to make it a h-game, just a straight-up choose your own adventure game, left that part out, I'll bet you could have had some more interesting adventures on top of it if you weren't constrained to the way you did it.
That said, this sucker has a fair amount of complexity for something like that, and for the most part, the pieces fit together.
Games that try to simulate real-world activities (like driving vehicles or living the life of someone else) with as much realism as possible.
Simulators generally require more study and orientation than arcade games, and the best simulators are also educational.