Datang: Travel Through the Awakening System of the Tang Dynasty! Invincible!

Super cool, not pretentious, invincible system Li Xi, a loser in science and engineering, suddenly traveled back to the Tang Dynasty when Li Shimin ascended the throne not long ago, and became Li Shimin's illegitimate son! "Why don't I have a system?" "The system is detecting... The face-slapping system has been activated" I actually have a supernatural space? Are they full of tanks and heavy machine guns? It turns out that as long as I conquer others, I can help them obtain top qualifications in this field! Turks invading? Huo Qubing! Yanyun's Eighteen Riders! "Son... Can you give me a few people?" Li Shimin prayed.