Original English name:
sadan's promise
The eldest female in R, the legendary all-powerful Shen Nana, is a troubled person both inside and outside the school. She has a bunch of male classmates with whom she has ambiguous relationships. Among them, Lin Zhe, known as Prince William in R, and Kusaka Hashisuke, the former B lieutenant colonel, are closest to her. Shen Nana bullies her friends, classmates and other female relatives, taking advantage of them and beating them up, doing all kinds of evil, but the boys are still obsessed with her.
One day, Shen Nana suddenly met her true love, and that person was her best friend Du Rong...