Well, I was going to give this a go, but, I don't do femdom. Even very light stuff. Wasn't even going to post but, seeing a few talking about 'sandbox' and you saying it's not, I decided to respond.
Thing is, as with femdom, there are varying degrees of sandbox games. Some are extreme and have little to no story content. Others, the lighter versions(like
Come Home by RJ) that are done right, usually have story elements within. I can't say which this is, as I haven't played it, I'll leave that to you and others to determine. I'll keep an eye on this one though and hope the femdom becomes optional. But, I wish the dev well.