This story unfolds from the perspective of Li Jingui, the biological mother of the fourth elder brother.
People say that Li Jingui, who lived in the palace, was of low origin, ugly, and stupid. When Yongzheng was still a prince, she got drunk and had sex, which made her pregnant. She was scolded by the emperor. Yongzheng considered this incident to be a stain on his life. He was extremely disgusted with her and asked her to stay in the palace to wait for childbirth. After the childbirth, it was reported that she died of dystocia.
If she was ugly, how could she catch the Fourth Master's eyes?
If she was stupid, how could she give birth to a child as smart and studious as Si Age?
The fourth elder brother's future achievements are all planned by Li Jingui.