At the beginning of summer in the third year of Jozhao, war broke out between Yunmeng and Yunmeng around Jozhao. The Yun Kingdom was defeated, and the princess Bian Yueheng was killed on the battlefield. Shen Mingxiao, who had a deep relationship with his teacher from the same sect, was deeply hurt. On the day of the winter solstice, at the Ice Lantern Festival banquet, Shen Mingxiao, the eldest son of Prince Da Zhaoyong, met Jiang Jiyao, the second lady of Dingbei General Mansion, who was very similar to Bian Yueheng. The tombstone engraved with "My Wife Bian Yueheng" instantly became pitiful and ridiculous. Shen Mingxiao is determined to investigate the second young lady who has never appeared before, but seems to have walked into an intractable fog...