i am not a VN person. but so far it's not bad. It's not too long or too short. And it has enough amount of character development and punchline. Quite good for Game Jam. The VN system also works quite well.
The art style ,in my opinion, feel like a parady of anime. I am not sure if this is in purpsoe, but it has its charm. And i like the animated crystal background.
BTW i got sadistic ending 3 times in different path (Apart from eating the "donut").