Shen Linchuan, the Dragon Emperor of the Nine Heavens, possesses supreme mystical arts of the arcane gate. To fulfill his wife Su Wanrou, he willingly laid down his supreme identity and lived under an assumed name as a rickshaw puller in a treaty port city during the Republic era. For a full three years, he secretly used arcane secret techniques to draw the commercial dragon vein for the Su family, continuously bringing in wealth and helping the Su Family Trading Firm led by Su Wanrou soar all the way, smoothly ranking among the top gentry and tycoon families locally. However, after holding family wealth and social status, Su Wanrou gradually lost her original intention and developed a clandestine affair with Lu Jingyi, the arrogant and domineering young master of the Lu family. Shen Linchuan sets a trap to catch the two in the act in public, exposing their scandalous deeds on the spot.