There are seven mulberry trees outside the north gate of Qisang City.
It is said that Fu Luan, the wife of the former lord of the hometown city, planted it with her own hands more than 20 years ago when she got married. Now it has flourished.
Later, the lord of the hometown city became the emperor of the Qian Kingdom, with the reign name Yuan Jing. Unfortunately, his frail and sick wife died on the night when she was enthroned as the queen, leaving behind her eldest son Su Lie, who was only three years old. The emperor was in great mourning, and the whole country was in mourning. The coronation ceremony was postponed for three months, and the hometown city was changed to Qisang City. However, after March, the woman who accepted the worship of the people together with the king was someone else.