Clara Shaw, leader of Azure Phoenix Pavilion, hides her identity to marry into Xavier Manor for her sister. She impresses Marquis Ethan Xavier of the Northern Guard with her strategy and martial arts. She takes down vicious stepmothers and stepsisters. At the Northern Border, she slays generals and pacifies conflicts. Enfeoffed as a marquis alongside Ethan Xavier, they request a marriage certificate, sharing a powerful bond.