In the Tang Dynasty, Resistance Made People Stronger

Traveling through the Zhenguan period of the Tang Dynasty, I got a cheating system: Only by resisting the decree can you become stronger. This is tantamount to dancing on the tip of a knife, testing on the edge of death. However, to everyone's expectation, no matter how he tried to commit suicide, Li Shimin and Empress Changsun doted on him and were completely obedient to him. The reason for this is not even known to the protagonist himself. He was actually the first child born to Li Shimin and his eldest grandson, a poor lost child... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.