On the vast land of Kyushu, the Great Expedition brought a heavy burden of pearls, forcing fishermen to strangle their parents and children in order to obtain the shark pearls through the tears of a shark girl. As a result, a girl from a coastal fishing village suffered a fate, her parents died, and the whole village was massacred.At the critical moment of life and death, she turned to Fang Zhu, the most powerful official of the Great Expedition, who was passing through here. After going through many tests, she was finally brought back to Tianqi by Fang Zhu.