In 1633, Lu Changfeng, the youngest flag general of the Ming Dynasty Navy, escorted the governor of the East Factory to Southeast Asia to arrest the wanted criminals. He was attacked by a sea beast fleet and the whole army was wiped out. Lu Changfeng was rescued by a mysterious organization and then came to Luzon Island, the international trade center of the Age of Discovery. Under the leadership of Song Yingxing, a strange man in the Ming Dynasty, the islanders established the world fusion city "Wan Guo" to resist the cruel rule of the Spanish colonists. For the purpose of investigation, Lu Changfeng joined Song Yingxing's organization "Tian Gong" and fought against the colonists and maritime invasion forces together with the strange people of Wan Guo. Various inventions and creations ahead of the times appeared here, which was amazing... In the interweaving and entanglement of history and reality, Lu Changfeng finally realized the mystery of "Tian Gong" and solved the mystery of his own life experience. On the night of the return of the five-star comet, Lu Changfeng and Song Yingxing will write any history...