I don’t think I can rate this one yet, as I generally don’t rate VNs until I get a general idea of what they’re about. In other words, I haven’t gotten any indication of an answer to the question: “By the end of the story, what will the characters have accomplished?” Of course, I expect this to be answered in upcoming chapters, but I think you should have more indication of where this story is actually going.
Apart from that, the main character seems quite passive. Most of what he says is just reacting to things, and not always in very interesting ways. I would think that, being a former ninja, Tao would have a more unique point of view. What are his skills, for example? And how does being a former ninja affect his perspective on what’s going on around him? Because at the moment, most of his commentary centers on the fact that he comes from a lower class than his new family. Again, I do expect this to be remedied in upcoming chapters, but you should consider giving Tao a stronger sense of personality.
Still though, from what I’ve seen of this VN, I do consider it one to watch, and I wish you luck in upcoming chapters.