I can't decide whether to give this 4 or 5 stars, so I won't, at least until future updates. There is a lot to like about it - most of the girls, most of the story -, but I'm a negative asshole and am going to talk about the things I don't like. That's my MO at the best of times, so don't interpret this as a negative view of the game; if you don't want constructive criticism, stop reading...
First, there are several random typos and grammatical errors. Do they ruin the game? No, but they do make it look like an unfinished product. Which I guess it is, but I still think it's important for someone to review the script and clean it up. Then there are a bunch of single frame flashbacks, and lacking context they are really confusing.
Most importantly, I think, is the beginning. The narrator gives way too much description about things like group dynamics and individual powers, and that just isn't quality writing. Not only is it awkward and borderline condescending, it adds seperation between the player's perspective and that of the MC, which I think is undesirable in this sort of game. It gets better quickly, but it was almost enough for me to stop playing at the start. I'm glad I didn't, as the game is very good.