This story takes place during the Jiajing reign of the Ming Dynasty, a time when Japanese pirates and sea bandits ran rampant, causing great suffering among the people in the coastal regions of the south. This film focuses on the renowned anti-Japanese general Yu Dayou as the protagonist. It tells the story of Yu Dayou during his youth, where he uncovers the schemes of Japanese pirates and sea bandits, bravely fights against them, and defends the people and the territory of the Ming Dynasty. The film conveys a strong sense of patriotism and deep national pride. In this story, young Yu Dayou undergoes a transformation from immaturity to maturity. In his youth, Yu Dayou simply aspired to become famous and be a great hero. However, through his struggles against sea bandits and Japanese pirates, he gradually realizes the true meaning of life. The true essence of a hero lies in serving the nation and its people. With his sword aimed towards the greater cause, he works to uphold and support the world....

Set against the backdrop of the prosperous Jiuzhou era, the story unfolds during the Empress's birthday celebrations, when mysterious cases frequently occur in the imperial city and a strange realm from the Western Heavens appears. Court lady Xie Yaohuan, together with the young prince He Hong, overcome perilous obstacles, unravel layers of mystery, and solve bizarre riddles to protect the Empress, the imperial city, and the people....