It's called slow-burn and build up, to get people who actually care about story and character development and not just about sex scenes, invested into the game. Also if you DID play the latest update, then you would know that the first of his daughters
is going to lose her virginity next update (for her birthday), it was all but confirmed.
I suppose the developer should just listen to you, and make this an orgy fuck fest game, where all the characters had sex with the MC in the first update, and they just sit around having sex all day. That would make for a TOTALLY fun and exciting VISUAL NOVEL experience. I would be so invested in the story and characters and would call this game a masterpiece like no other! (Just kidding, that's really stupid.)
Oh, and calling Rose a side character is also pretty damn funny. The Asian chick from school, now SHE is a side character, not Rose. (For now at least, she could become more important, no idea what the plans are for all the characters as of yet)
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Anyways, I really enjoyed the update
ShaddyGames and am excited for the next. I'm looking forward to the remaining dates, and also I'm really looking forward to see how the rest of the relationships develop and how the dynamic is between everyone once they do. I'm curious about what is gonna happen back home too once they're done visiting, since the school caught on fire.