Alrighty! I've played it up til the cut off. So let's get into rating this unique piece.
First things first. The art brings me back to the days when life was simpler with Inuyasha and Ranma 1/2 art style. I love it.
Voice acting! Not many adult visual novels do this. Why? Because it can be quite embarrassing. You have a good voice for these characters. All I have to say for constructive criticism is you don't have that special something behind your voice. The soft spoken works.. for one of the three voices. Phanta. Public speaking, in this sense voice acting, can be seriously terrifying! But I believe you can do it.
And to round off how I feel about this I'm going to the text. It's easy and simple to follow along with the thought boxes and the MC's text. My only issue is lil miss Vamp. The tutor screen for her is hard to read. I understand you want to go with a color theme, but a color theme doesn't work for text if it can't be read.
All in all I adore this! I can see this getting a lot of support over time. So keep it up!
9 outta 10