Tbh I would've been satisfied if this was just a 15 chapter short story. It was pretty good.
I don't want to ruin this for myself so I'll drop it here. I don't want to scratch this gem.
I have to say the way the MC's trying to act all sly and tricky is kinda stupid. I mean all she did was go to the party. Its not like she has any well thought out plans or anything. Her plan is basically: make people like me.