Pretty cool game, exploration and scenes are fun, wish you could customize autospeed more. Dialogue is obviously butchered through translation, but story feels pretty cool, I wonder if it's inspired by something
Combat is really basic and really needs aiming, there are some very big rooms without anything but some normal enemies in them, would've been perfect for minibosses. All bosses except the last one were more of a gimmick fights where I just found a safe spot or moved away from attacks and blasted them until they die. Final boss is the only one that looked fun and actually required to dodge a little besides blasting it until it dies.
I think if it was more polished it would actually be more of a "game with sex" than "sex game".
Also I don't know what's up with Final weapon plans, I upgraded all weapons to max and she just says she can't do anything more and those plans are just left in inventory.