Before the age of seventeen, Chen Jinyan had always called him brother Yan Shuwen; after he was admitted to the Medical University, he started to call him senior brother again; later Yan Shuwen returned to China and became a rotation instructor in the Department of Surgery at the Medical University, and Chen Jinyan changed his name to call him teacher... For more than 20 years, Yan Shuwen has played many roles in Chen Jinyan's life, but the role that Chen Jinyan most wanted that person to play was the secret that he could not tell anyone, the hidden secret...