Strange, it just doesn't open or it opens with a gray screen? If it's the latter and you've played a previous version, you can try to delete the files in %UserProfile%\AppData\LocalLow\noshuio\Minato (this will delete any progress)
the game opens and i can select the character but then it goes gray
That was fixed in a new version a few hours ago, try redownloading it. Sorry!
