In the troubled times of the Republic of China, the Su family, a century-old tea merchant in Suzhou, deliberately created a massacre and set fire to the Lu family in order to seize the Lu family's tea-making secret book. Only the orphan Lu Wanxin survived.
The second son of the Su family, Su Muhan, knew the inside story and felt guilty. In addition, he had a secret love for Lu Wanxin at a young age. Regardless of the family's criticism, he took her into the Su Mansion for foster care. For several years, Lu Wanmin lived in the enemy's house, hibernating, hiding a bloody feud, and secretly investigating the past events; while Su Muhan silently protected her and made amends in secret, he was bound by the family's original sin, concealed the truth, and was trapped in the dilemma of love and guilt.
On the way to Shanghai, Lu Wanmin accidentally discovered all the Su family's conspiracy and realized that the Su family who raised him were enemies. He was heartbroken and completely broke with Su Muhan. Knowing that she could not counter the power of the family on her own, she chose to join forces with the Su family's old enemy, Li Jiangchu, a son of a Shanghai warlord. The two formed a covenant and cooperated internally and externally.
Later, Lu Wanmin broke into the secret warehouse of the Su family and obtained key ironclad evidence such as the old man's personal secret order, bribery account book, and plundered secret book. Li Jiangchu immediately closed the network, disrupted the Su family's business foundation, aroused public resentment, and cooperated with the government to investigate and investigate the crimes. The century-old Su family collapsed, and all the culprits were severely punished.
The dust of the past has settled, Su Muhan bears the family's sins, disperses his family wealth and goes to the northwest for exile, spending the rest of his life alone to atone for his sins; the innocent Su Muxue is properly placed by Lu Wanxin and lives a stable life. Lu Wanxin put down his hatred and settled alone in Shanghai. Li Jiangchu put down his power and tactics and stayed with his confidants. They met in troubled times, stayed together tenderly, cleared up their grudges, and each returned to peace for the rest of his life.