I only played in this for story. a couple of years ago.
I wondered if the girl is like a 'sleeper' and the whole sex doll thing is just her cover-up.
there were other interesting things, like that time when the girl shared her views about humanity... that was pure fascism btw, and I was intrugued if the MC could shift her views according to what the player sees fit.
afaik the story isn't finished, but they added some thing that are totally unimportant for a big picture - like hand holding, fishing Stardew-style (though absurdly harder, literally unplayable) and... even more trash like 'clothes' (just a texture of clothing with another flat, tasteless image or another fucking ad).
this game is done.