Cheng Yan, who was scolded by his biological mother as a dragster, returned as an adult as the heir to a tens of billions of trust funds. When he threw the trust deed on Zhou Manrou's face at the family annual banquet, the entire Cheng family was shocked. Lawyer Lu Huaizhou secretly helped him uncover the financial shady world, and the secret ledger of Chief Financial Officer Su Yanzhi became a deadly weapon. However, Zhou Manrou's adopted daughter Lin Yi suddenly rebelled and exposed her years of money laundering crimes. Cheng Yan didn't come to recognize his relatives, he came to settle matters - every inheritance was the interest on the blood debt.