Start the Tang Dynasty: the Descendant of Wei Wu from the Qin Qiong Family!

Qin Huaiyu, an ordinary young man, accidentally traveled to a different world and became Qin Qiong's eldest son. I finally woke up to a system, but it's still not serious. Li Shimin: "Huaiyu, it's not peaceful over there again." Qin Huaiyu: "Your Majesty, I will deal with them!" Li Shimin: "Huaiyu, Qiwang of the Five Surnames has started to make trouble again." Qin Huaiyu: "Your Majesty, I will kill them!" Li Shimin: "Huaiyu, I am about to die..." Qin Huaiyu: "Your Majesty, you can go with ease!" Li Shimin: "???" The story of this young man will begin in the Tang Dynasty!