Datang: What Should I Do If the Rebellion Fails at the Beginning?

Li Yang traveled through the Tang Dynasty and became the eldest son of the emperor with the same name, but what if he faced a failed rebellion after crossing over? Fortunately, there is a system and the prince can chat**; but, it is not so scary, right? Li Er was also chatting with the Crown Prince**? So Li Yang, who was demoted to a commoner, began to talk about various aspects of Li Er's life, silently gathering strength to regain everything he lost. One day, Li Er looked at Li Yang, who led a million troops to surround the imperial city, and was completely confused. Li Yang: Hehe, I didn't expect it, Lao Li, what a coincidence, I am also the crown prince, and I am also in the **! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.