Ask for a novel in which the protagonist travels to the Tang Dynasty and becomes the son of Li Yuanba. The protagonist named Liu Yun started as a refugee and was serialized.

Is "The First Bitter Man of Datang" Author: Water comes out at the foot of the mountain

According to the old folklore, Li He could not compete with each other, but was the most invincible in the Tang Dynasty. So, what kind of wonderful life will it be to cross into a posthumous child in Li Yuanba? He is never afraid of getting into trouble. Hit dad, who can hit him?