Someone else called this a "waifu simulator" so I downloaded to try it out. Turns out he was exaggerating for the most part, it's not much of a simulator of anything - the story is perfectly linear and it's basically a "grind a bit to unlock it all" type of game design.
Which isn't necessarily bad, the graphics are unusual and cute-looking in their own cartoon way, the story is ok. Not much content was ready yet in the version I played, but I did find myself looking forward to when more is released.
4/5, and it's not a waifu simulator at all, that's for sure. But I feel like the game wasn't trying to be a simulator, it simply wants to be a cute story on rails with some grinding in there - which is fine in its own right, just a lot less ambitious than being any kind of simulation.