In the fourth year of Zhenguan, Prince Li Chengqian went to court for the first time to show off his knowledge. Unexpectedly, Li Shimin placed high hopes on him, and his dream was shattered. He turned to cultivating his younger siblings, hoping to use them to escape, but instead he got himself into a reserve dilemma. Faced with Li Shimin's strong pressure to take the throne and Li Tai's rejection, Li Chengqian, who was desperate, actually pushed the throne to the young Li Zhi.
