I Have Five Rogue Brothers

Bai Mirou was the beloved eldest daughter of the Bai family, a brilliant and beautiful girl who excelled at music, chess, calligraphy, and painting. After transmigrating, she discovered that she had become a total idiot who knew nothing about math or science and couldn't even solve a quadratic equation. Luckily, her five older brothers had transmigrated with her. From then on, she could rule the school and the world, and nobody could ever outdo her! As soon as exam time came, five little notes arrived. Her five brothers: Little sis, we got the answers. Just copy them! Bai Mirou: ...Who gave you the answers? Can they be trusted? Her five brothers: Don't worry. They're from the top student in the year. They'll guarantee you first place! The top student, crushed by oppression and unable to fight back: ...