Why didn't there be a constitutional monarchy in the Ming Dynasty?

Constitutional monarchy, namely "limited monarchy", is a national system relative to absolute monarchy. Constitutional monarchy is a political system that establishes people's sovereignty through constitutionalism, limits the power of the monarch, and realizes the ideal of republicanism in affairs without adopting republicanism. It can be divided into dual constitutional monarchy and parliamentary constitutional monarchy.

1380, Zhu Yuanzhang dismissed the prime minister. Unable to manage government affairs personally, Zhu Yuanzhang set up four assistant officials to assist government affairs, but this system was abolished in July 1382. In November, imitating the Song Dynasty, we set up college students in Gaihuatang, Wuyingtang, Wenyuan Pavilion and Dongge, and also set up college students in Wenhua Hall to tutor the prince, all of which were rated as positive five. After Ming Chengzu acceded to the throne, Jie Jin, Hu Guang, Yang Rong and others were sent to Wumen Wenyuan Pavilion to participate in maintenance and establish a cabinet. The cabinet is only the emperor's adviser, and it is the emperor's task to approve the memorial. Most of the positions of cabinet college students are held by masters, scholars and ministers of the DPRK, and they are written only according to the will of the emperor, calling "government orders as pens." Ming Renzong added a college student to the worship hall. During the Xuanzong period, because three young people, such as Yang Pu, Yang Yuan and Yang Yuan, entered the cabinet, Xuanzong approved the cabinet to state their opinions on paper, which was the so-called "draft by ballot" system. In the early Ming dynasty, the cabinet had no real power. After that, the status of the cabinet gradually improved and its authority gradually increased. By the time of Emperor Shizong of Ming Dynasty, the cabinet had finally jumped to six. After Jiajing, there were more than six classes in the DPRK. Since then, the Cabinet has become the highest decision-making body of the central government. But still can't realize constitutional monarchy.