Zi Xi is an illegitimate child of Guo Jun. At that time, Ann had more than 20 sons, and the son became the most likely heir. After all, Ann Guo Jun is the king of a country, and he values Xi for a reason. First of all, Zi Xi is not only brilliant, but also very clever. He knows how to assess the situation and how to speculate on Guo Jun's intentions and future plans. But in the end, it was replaced by different people, not because they were so powerful, but because of a plan planned by Lv Buwei.
Lv Buwei's success is largely due to his knowledge that Mrs Huayang is Guo Jun's favorite woman. Mrs. Huayang is very beautiful, but she can't have a son after marrying a Guo Junren. Even if she is favored, Mrs. Huayang should worry about her future. After all, her beauty is not permanent. When she is old and has no daughter, the future should be miserable.
Lv Buwei is well informed. After he found out that makes was the monarch, although his biological mother was not taken seriously, only he met the requirements and could become the adopted son of the most favored lady Huayang at that time. So after some design, Lv Buwei finally succeeded in persuading Mrs Huayang to adopt an alien as his adopted son, and Mrs Huayang proposed to a Guo Junren to adopt an alien, which was also accepted. In the end, Zi didn't get the throne, and the stranger and Mrs. Huayang became the final winners.