Parallel Tang Dynasty: I am Emperor Shizong Wei!

Time cannot flow backwards, so time travel can only mean traveling to a parallel universe.

But what does it mean to travel back in time and become Li Ke, the third son of Li Shimin?

Although it is a parallel universe Tang Dynasty, Li Ke does not want to become the Li Ke in his own history.

So, let's take a good chance.

Protagonist: Li Ke