A sudden rain lashed at the pavement of the old street. Gu Yan, who had been wandering for days, hurried to dodge and accidentally bumped into Gu Zhenting's car. A streetlamp illuminated the heart-shaped birthmark on his neck, and Gu Zhenting froze instantly—this was the biological son he had spent twenty years bitterly searching for. Gu Yan followed Gu Zhenting back to the Gu household, and the peaceful mansion instantly surged with undercurrents. Gu Yu, who had enjoyed twenty years of privileged life, and Chen Guifen, who knew all the inside details, were filled with panic the moment they saw the birthmark. Relying on the secret from back then, they had lived peacefully for twenty years, but now the real Gu family child had returned, and the stable life built on lies began to collapse piece by piece. The belated reunion lacked a grand ceremony,