He let Sun Deng remain in the rear. At that time, Sun Deng made some laws to prevent crime, which achieved successful results. However, Sun Deng never succeeded his father, dying from illness aged 33 (by East Asian reckoning).
Sun Deng was permitted to stay in the back position. During this period, he established laws to combat crime, resulting in positive outcomes. Unfortunately, Sun Deng passed away prematurely at the age of 33 due to illness.