Tang Dynasty: Consort Wu? Your Majesty, please address her as the Crown Prince's Consort.

The Tang Dynasty + Rebellious Son System + Father's Farewell and Son's Laughter + Xuanwu Gate Showdown + Brotherly Bravery and Younger Brotherly Attack + Lighthearted and Humorous.
A modern youth transmigrates to the Tang Dynasty and becomes Crown Prince Li Chengqian. He is bound to a "Rebellious Son System" from the start, and he can become stronger by causing trouble for his father.
Li Shimin: Where is my sweet and gentle Wu Cairen?
Li Chengqian: What, Consort Wu? Your Majesty, please address her as the Crown Prince's Consort!
Li Shimin: I want Qingque to reside in the Wude Hall!
Li Chengqian: Eight hundred it is. The better to strike first!
Li Shimin: You unfilial son! I was just joking. Spare the sparrow from the blade!
Li Tai: As fellow sons of the Emperor, you can sit on the position of Crown Prince, and so can I!
Li Chengqian casually pulled out a burlap sack: Ah~~ It's the Prince of Wei!
……
The ministers said: "His Highness the Crown Prince is truly a benevolent and sage ruler, and the hope for the Tang Dynasty!"
Li Yuan: My dear grandson is the most obedient, how come he becomes a rebellious son in your mouth, Li Er?
Li Shimin: You must believe in me! Believe in me! This bastard is truly a rebellious son! Waaaaah!
Let's see how Li Chengqian creates a brand new and prosperous Tang Dynasty!
(Some dates and characters in this novel deviate from actual history; the author simply hopes everyone enjoys reading it!)