Why did Liu Chaoming choose the Four Princes?

Liu Chaoming chose Four Princes because they saved Liu Chaoyang's life and agreed with Liu Chaoyang. According to it's raining, Liu Chaoming lived for the people all his life. Liu Chaoyang thinks that the prince is not a good emperor. He wanted to choose a wise king and a fourth prince, but he was not sure. Until the death of the Prince, the Fourth Prince gave up the best opportunity to seize the throne and chose to go out to war, which was recognized by Liu Chaoyang. Shen Xiaozhi, the author of Coincidence with the Rain, tells the story of Su, Shi, Shi, Qing and Yue who moved between the three dynasties. From a humble point of view, in their love and hate, they left their own sorrows and did not hate each other. This is the subversion and reconstruction of the dynasty, the pursuit of personal ideals, and the old walk hand in hand and drift away.