Great Tang: Li Shimin Exposed My Identity as the Crown Prince

Li Jie, the eldest legitimate son of the Tang Dynasty, has suffered from a brain ailment since childhood and cannot inherit the position of Crown Prince. Li Er sends him to be raised in the outskirts of Chang’an. For twelve years, His Majesty Li Er never once comes to see him. Then one day, Li Jie comes up with something called a curved-plow. Then one day, he comes up with something called a facial mask. From that day on, a man called Old Wang and a woman called Changsun frequently come to visit Li Jie’s home. The man says he’ll give Li Jie a realm of his own.