In the original novel, Qiao Yueru, as a disciple of Yushou Sect, had a very keen sense of animals' and people's emotions. Whenever the male lead was happy or angry, she could always sense it first and feel happy for him or share his anger.
As the first supporting female character to appear, and in such a scene where the hero saves the beauty, Yan Shu bought into her role and was quite stubborn about it.
Even as more supporting female characters appeared later on, Qiao Yueru, realizing that the male lead treated everyone equally, developed the idea of sharing him with multiple women and put it into action. Yan Shu never thought about replacing her.
After all, in the world of male-oriented novels, she even had the idea that even if there was a harem, she would be the empress.
But now, Qiao Yueru had suddenly placed her in the ranks of the harem, making her mood somewhat complicated.