So the game looks interesting and the are is nice, but we'll probably have to wait A year for substantial content. Now I don't really understand why make A sandbox with A bunch of stat raising and the like, but not having A harem option, like I can't see myself grinding out A bunch of chores (stats) multiple times starting A new game each time to get with each girl, it honestly sounds like A bunch of annoying busy work. If you are going down the no harem route and can only end the game with one girl then I'd prefer you go down the Japanese visual novel style and simply have A common route that introduces you to the entire cast and has you get to know them, then you simply add branching dialog choices that lead you too each girls individual routes that are actually substantially unique and gives A genuine reason too replay the game multiple times because the story will be actually different for each girls route and does so without all the pointless grinding and time wasting for A very similar experience each go around.
Now obviously I'm biased against sandbox games because there's very few that ever actually amount to A worthwhile experience, at best they usually are simply designed around letting you see and get with whoever you want at your own convenience and are usually harem games because of that, at it's worst it's designed around having A bunch of pointless time consuming chores to hide the fact that in reality there's barely any content.
To sum things up I like the art and setting, but I'm worried this will become another time wasting sandbox too hide the lack of content and the lack of harem causes me to feel even more worried this will become A convoluted mess with time. That being said I genuinely hope you'll prove me wrong and I'll be keeping an eye on the game until it gets some more content to play through.