He was a political visionary figure in the Qin Dynasty and the eldest son of Qin Shihuang who had high hopes. But the upright and simple Fusu didn't understand the imperial power, and he analized his father again and again. Finally, Qin Shihuang became angry and threw his son, who only knew theory but no practice, to the northern army to train him.
Unexpectedly, during a patrol, the emperor died in the sand dune, and a traitor took power and forced Fusu to death.
Fusu's remnant soul has seen the turmoil of the troubled times, with bones exposed in the wild, no roosters crowing for thousands of miles, and it is always the people who suffer. After being reborn and returning to a time when everything could still be saved, he vowed to return a peaceful and prosperous age to the people.
On the way back to save his father, he accidentally saved a little "beggar", and he never returned to Sue's road.