Jiang Chi and Ji Cheng met in high school and had a mutual affection for each other. Jiang Chi devoted himself to racing in college, and Ji Cheng helped him choose a mechanical major. There was a car accident on Jiangchi Mountain Road. Ji Cheng was hit by fragments in the brain when he was rescuing him. He did not undergo surgery due to the risk. Jiang's parents obstructed him and Ji Cheng left silently. Jiang Chi mistook him for being heartless and resented him. Five years later, Jiang Chi, who was already a well-known driver, reunited with Ji Cheng, who had become a team engineer. Jiang Chi kept targeting Ji Cheng, but he did not know that he had sequelae such as dizziness and amnesia due to fragments in his brain. As memories of the past emerged during the relationship, Jiang Chifa and Lu Ze gradually revealed the truth of that year. The Jiang family's parents felt extremely guilty after learning the truth. Although most of the fragments were removed during Ji Cheng's surgery, there were still residues that required lifelong attention. The parents finally reconciled, and Jiang Chi and Ji Cheng resolved their misunderstandings and stayed together.