Jiang Yu, who had been adopted for 20 years, was appointed as the heir to the Jiang family by his biological father Jiang Zhenguo, but was questioned on the spot in the board of directors as "not his biological child". He silently took out the dust-covered birth certificate, and the ironclad evidence of blood relationship exploded in the audience. The transfers, concealments and betrayals of the past are revealed in layers - the adoptive father's paranoia, the illegitimate son's resentment, the old housekeeper's silence, and the reporter's tracking. Every step is a carefully laid mine. This is not an inheritance battle, but a son's ultimate reckoning with the lie family.