Wang Dafu did a kinship test because his granddaughter's blood type was wrong, and a shocking secret was uncovered. Wang Ping'an, the son he had raised for thirty-eight years, actually had no blood relation to him and his wife at all! Thirty-eight years ago, there was a power outage at the hospital, and two boys were accidentally swapped. On one side was his biological son Zhang Duobao, and on the other side was his adopted son Wang Ping'an, whom he had raised for thirty-eight years and had deep feelings for. Taking back his biological son, Wang Dafu was full of guilt and blindly compensated him.