Shen Yan, the legitimate son of an aristocratic family, was extremely talented, proficient in arithmetic and craftsmanship, and famous in the capital for his sea-ship blueprints. He had a bright future, but was betrayed by his relatives.
His sworn brother Shen Yi and his fiancée Liu Qingyuan teamed up to conspire and fabricated evidence of collaborating with the enemy. The entire Shen family was executed, his parents died tragically, and he himself was unjustly exiled to the desperate island of Purgatory. Falling from the clouds into purgatory, Shen Yan narrowly escaped death. Fortunately, Mr. Mo, a strange man from the previous dynasty, taught him peerless martial arts, business strategies, and navigation secrets. He learned the "Cang Hai Jue" and even obtained the secret treasure of the Cang Hai Dragon Picture. He hunkered down on a deserted island to temper his mind and sharpen his ambitions.
After years of forbearance, Shen Yan successfully escaped from prison and went to sea. Under the pseudonym Shen Wanhai, he started from scratch overseas. With his resourcefulness and advanced skills, he earned his first pot of gold. He successively met the loyal general Wei Lin, the wise man Mr. Su, the skilled craftsman Lao Song, the medical fairy Yunniang and the warrior Ali. He formed a five-person think tank, founded Canghai Trading Company, bought Longtu Island, and built a maritime business empire that dominated the world.
He accumulated strength and laid out a chess game. As a maritime businessman, he traveled between the government and the opposition to collect ironclad evidence of unjust cases. At the same time, he started a commercial and political confrontation with his enemies Shen Yi and Liu Qingyuan, pressing forward step by step.
After gaining power, Shen Yan revealed his identity in public and returned with overwhelming power and conclusive evidence. He stirred up a storm in the court and liquidated his enemies step by step, leaving Shen Yi and Liu Qingyuan in disrepute. He finally avenged the Shen family and washed away the grievances they had suffered for half their lives.
After becoming famous, he declined the generous salary from a high-ranking official in the court, and returned to Longtu Island with his true love and life-and-death friends. He was engaged in commerce all over the world, guarded the peace of the island, and wrote a legendary epic from the soul of purgatory to the overlord of the world.