Cao Yu was full of resentment towards the enemy's son for nineteen years, and it was not until he learned of the "death" of his adopted son that he began to reflect on his heart. Shangguan Hong, who has also experienced the separation of his wife for 19 years, finally ushered in a family reunion after recognizing his son and let go of his past hatred. After the two fathers wake up, can they make up for the regret of their children's loss of their father's love for 19 years? In the end, will they be able to give their son the long-missing fatherly love?