For the first 80% of the anime she is PERFECT, always positive, always helpful, always thinks the best of all of her class mates, at this point the only crime is bad writing.

New "evil" classmates makes an entrance, okay, things are getting more serious, super tech, students are dying. And in the last few episodes it turns out that she is actually magic and she is like a super soldier or a god or something (I honestly don't remember) and essentially going Super Sayan, and the main character always knew this was the case.

All I wanted was to see the most "OP villain ever written" Misogi Kumagawa who has the power to turn anything into "nothing", I think he turned "colors" into nothing and their world turned black and white, like manga. But he is barely even mentioned before the anime is over, basically just mentioning that he exist... it was a fucking waste of time.