Dark, Paranoid, Jealous, Pisces Man Has a Crush on Me

It's a Campus Story. the Heroine Pretends to Be Cute, but Actually Fights Very Fiercely. She's Super Cool and Sassy.

I want to read a book similar to "Pretending to be a Top Student". A campus novel, the heroine is good at pretending to be cute, but in fact she fights very hard and is super cool.