Xia Ding was originally the son of a general in Xiqi City. The barbarians invaded and killed Xia Ding's parents and all the soldiers in Xiqi City. Xia Ding fled to Taiping Town. Xia Ding, who grew up here, and A Li, a girl who shared the same fate, were bullied by Nofu, the son of the town guard. But Xia Ding fought against the dragon and the wolf to protect the people of Taiping Town. When the barbarians invaded Taiping Town, Xia Ding finally knew that he was a winged man chosen by the Thunder God. He grew wings, drew lightning, killed all the barbarians, and killed the witch who worked for the barbarians. Unfortunately, his lover A Li was killed by the witch. Xia Ding used his wings to protect A Li and turned her into a stone man. A hundred years later, thunder and lightning struck, and the stone broke and gave birth to a boy. Ji Chang happened to pass by and adopted him as his adopted son and named him Lei Zhenzi. From then on, Lei Zhenzi, who could grow wings and draw lightning power, helped Ji Chang to fight against King Zhou.