Tang Dynasty: Just Appointed Crown Prince, the Comeback System Arrives

[You have been Crown Prince for eighteen years, but you still can’t prove to your father that you are a qualified crown prince. You are fed up, you tried to rebel and failed, and you were stripped of your position as crown prince.]

[The counterattack system is activated. Please, host, return to the position of crown prince. Reward: Taixuan Health Preservation Scripture, can treat a crippled leg.]

Eight-year-old Li Chengqian looks at the blood still wet on his hands and at Li Shimin, who is in high spirits as he formally appoints him as crown prince, and falls into deep thought. Hmm... it seems the system came a little early.

There is also one more thing.

His leg isn’t crippled at all? Uh... Li Chengqian is getting a little flustered.

How about giving Father Emperor something exciting?

...

[Detected that the host’s emotional fluctuations are severe. You may choose to complete a branch quest to speed up your return to the position of crown prince. Branch quest one: Kill Li Tai, kill Li Zhi, and bring their heads to see Li Shimin...]

Li Chengqian: “Wait, isn’t this a little too exciting?!”