When Li Feiyu had killed the State Preceptor, Mu Wanyan was not in Daqian Capital City; she was still traveling abroad. Upon hearing the news, she immediately rushed back and even thought of going to Li Mansion to seek revenge, but she was stopped by Yu Wanying.
Mu Wanyan held an immense hatred for Li Feiyu, hating him for killing her father without reason. However, for the sake of her mother and the other people at Mentor's Manor, she had to voluntarily become Li Feiyu's concubine. Otherwise, her mother would have to be the one to do so, and she didn't want her mother to bear this alone.
Mu Wanyan was very confident in herself; if she offered herself as a concubine to Li Feiyu, he would definitely accept. Then, with Li Feiyu's influence, no one would dare covet the widows of Mentor's Manor.
With her talents and Li Feiyu's resources, there was a hope for her to cultivate to the True Martial Realm, and thus there was a chance she could avenge her father in the future.