Bai Meipei, the little dragon girl of Yunmengze, has been in love with her childhood sweetheart Shen Nianbai since she was a child. When Bai Meibei, Shen Nianbai and Gu Hanyi went to Xiaochangbai Mansion to get the Lingxi mirror, they experienced many disasters... After Bai Meipei and Shen Nianbai got married and gave birth to a daughter, Shen Nianbai died in the Demon City in battle. She was framed as a collaborator and traitor. When Bai Meipei was heartbroken, Gu Hanyi, the mayor of Buxiang City, wanted to marry her. From Wan Ji's hint, she began to suspect that Shen Nianbai's death was related to Gu Hanyi...