I, Li Chengqian of the Tang Dynasty, Refuse to Become Another Hidden Crown Prince!

After Li Chengqian breaks his leg in a fall from a horse, he unexpectedly awakens a System. His soul drifts through parallel worlds and is washed in the memories of later generations. When he comes to, it is still the thirteenth year of the Zhenguan era. [Ding-dong!] [The Greatest Emperor of All Time System has awakened!] [Beginner's reward granted!] [One Fortune-Reforging Pill, low-grade version: It can reshape the Host's body and heal all injuries. After reshaping, the Host will possess innate divine strength!] "I'm the Crown Prince of the Tang Dynasty, that's true, but I'm not my uncle Li Jiancheng!" After much effort, Li Chengqian breaks free of Li Shimin's control. One day, Li Chengqian arrives before Li Shimin carrying Li Tai's head. Seeing the scene before him, Li Shimin forces himself to stay alert, suppressing the overwhelming urge to faint. He points a trembling finger at Li Chengqian and cries out in anguish: "You rebellious son! Qingque is your own brother, born of the same mother! He has already lost, so just hand him over to the law. Why did you have to kill him yourself?!" Li Chengqian gives a cold laugh, though his heart is filled with unbridled satisfaction. "Father, if I hadn't done it myself, I couldn't have vented all this anger in my heart!" At last, Li Chengqian breaks free of the fate laid out for him. The Xuanwu Gate succession tradition begins with his father and ends with him, as he ushers in Xuanwu Gate 2.0. From then on, the Tang Dynasty returns to the succession order of the legitimate eldest son...