VEri's manga / #fantasy(1)

Tramsmigrate into novel 24 Or: her brother was a student at an academy for knights. The boys bullied him. And her fiance liked her brother. It's was a BL novel. Now: she wanted to prevent the original novel. She made her brother show all his bruises to their father. Her father was mad. She ended being his replacement. Now she has the sword, she will become the head of the family. Her brother has the shield power. She ends her engagement (since I the original novel her fiance was the one that liked her brother and did dirty things to him). She goes to the academy. At the train station a moster attackd and she defeats it and saved the villainousof the novel( what she doesn't know is that the villainess is not a female but a male in disguise, he is the eligitimate prince in hiding). She gain popularity. She beat the guy that bullied her brother but he loves her now, she hates that guys, (he fuggly). Blonde girl wanted her to join the salon, a group of nobles people. She refused so that girl gave her negative marks. Since she wanted to graduate early this affected her plans. But her friends collected 2000 signature to remove the voting system. She was able to take the final exam. She left home. Prince in disguise wants to invite her to a tea party. Now her ex fiance cares about her,but before he didn't.