Datang: Just been appointed as the crown prince, the counterattack system is here

You've been the Crown Prince for eighteen years, but you still haven't been able to prove to your father that you're a qualified Crown Prince. You're fed up, your rebellion has failed, and you've been deposed.
[The counterattack system is activated. Please return to the position of Crown Prince. Reward: Taixuan Health Preservation Sutra, which can cure lameness.]
Li Chengqian, who was only eight years old, fell into deep thought as he looked at Li Shimin, whose hands were still bloody and who was proudly appointing him as the crown prince. Hmm...it seems that the system came too early.
And one more thing.
My legs aren't lame! Uh... Li Chengqian couldn't jump anymore.
How about giving Father something exciting?
.......
[The host's mood swings have been detected. You can choose to complete the side quest to accelerate your return to the throne of Crown Prince. Side Quest 1: Kill Li Tai, kill Li Zhi, and bring their heads to see Li Shimin...]
Li Chengqian: "No, this is too exciting!"

Novel Keywords: Datang: The Crown Prince Was Just Created, The Counterattack System Is Here (no pop-up window), Datang: The Crown Prince Was Just Created, The Counterattack System Is Here (txt download), Datang: The Crown Prince Was Just Created, The Counterattack System Is Here (latest chapter reading)