Qin Cang was rendered silent by Beauty Zhou.
His situation was not very good. As a talented prince, he could basically bid farewell to his pursuit of the throne. Without powerful help, he would never be able to touch that throne.
Qin Cang also knew that, so he kept a low profile. He did not fight for favor in front of the emperor, nor did he rope in ministers. The other princes saw that he was so tactful, so they ignored him and hoped that he would be a idle prince.
Only the third prince had been looking for trouble with him in the open and in the dark.