The rainy season in Qinchuan is much longer than other places. Residents of Qinchuan say that God has favored this place. The rain brings spiritual energy to Qinchuan, so Qinchuan is more prosperous than the surrounding towns. Baili Tusu came to Qinchuan on the rainiest day of the year. He didn't bring any luggage and walked straight to a small courtyard on the outskirts of the city with empty hands. No one knew his origins. Only the dean of the academy knew that he had an extra student.