Decisive and ruthless + Cheat code + Territorial expansion + Industrial Revolution + Age of Exploration

This book is also known as "Crown Prince, Stop Studying! The Tang Dynasty Has Already Been Ruled by Nine Dragons," "The Tang Dynasty: Father, How Can You Sleep at Your Age?" and "I, Li Chengqian, the Most Stable Crown Prince in History."

He transmigrated to a parallel Tang Dynasty world and became Li Chenggan, who was still the heir of the Prince of Qin's mansion.

Faced with the hesitant Li Shimin.

Li Chengan: Father, if you don't rebel, then I will! The heads of my eldest uncle and fourth uncle rolled on the ground, and everyone felt relieved.

Five surnames and seven prominent families: You killed your uncle and minister, you are rebellious and immoral! Your virtue is unworthy of your position!

Imperial relatives: Who is Li Chengqian?! If you anger him, he'd dare to drag out and behead even his uncles or the retired emperor!

When the Embroidered Uniform Guard escorted the entire families of the five prominent clans and seven noble families to the Crown Prince's Eastern Capital, Luoyang Special Administrative Region.

Li Shimin: Chenggan, although these people have made mistakes, they don't deserve to have their entire families executed. Give me some face.

Li Chenggan: Alright, then let's exterminate their entire clan.

The Five Clans and Seven Noble Families: Alas! Your Majesty is merciful!