Raised by his grandmother and taught acupuncture, Shang Wanxing, who is upright, kind-hearted, and loves to fight against injustice, wants to make money and go back to the countryside to live with his grandmother. However, he accidentally saves Si Luoyu who was framed by a scheme. By a strange combination of circumstances, he signs a contract with Si Luoyu's uncle, Si Yubai, to take care of Si Luoyu. As they get along day and night, the two develop feelings, work together to solve the difficulties, help each other, and achieve each other's achievements.
