Chen Hui --- Zhang Wan Yi
A young genius who possesses exceptional memory and keen observation skills from an early age but lacks emotional intelligence. His father is disappointed in him, but his sister, Chen Dan, has always been by his side, protecting him. However, after a tragic accident, Chen Dan loses her life. From that moment on, he is determined to become a surgeon. Initially, due to his low emotional intelligence, he faces scrutiny in the workplace. However, as time goes by, he gradually overcomes the limitations of his low emotional intelligence.
Yuan Ye --- Jiang Pei Yao
She is a resident physician at an ordinary surgical hospital, highly goal-oriented and competitive. She is a girl who wears her ambition on her face and desires to be the first. In her pursuit of being the best, she gradually loses her true self. However, it is not until she meets Chen Hui that she slowly rediscovers her pure heart and learns to treat the lives around her with gentleness. Through this journey, she achieves reconciliation with her mother and with herself.
He Tong --- Zheng Yun Long
He is a resident physician in general surgery, coming from a middle-class family. He has a positive and optimistic personality, with a high emotional intelligence. He enjoys basketball and motorcycles, making him popular among others. He is partnered with Chen Hui, and they support each other throughout their journey. In this process, he overcomes the psychological barriers caused by a previous medical accident and completes his personal growth.
Bai Chun --- Lv Xiao Lin
Bai Chun, the Deputy Chief Physician of the General Surgery Department at the Second Hospital, is confident, competent, highly rational, and straightforward with subordinates and superiors alike. He never discloses his own privacy excessively and presents himself as a stoic individual. When Chen Hui joins the team, Bai Chun, who is focused on his technical expertise, initially views him merely as a source of information. He doesn't pay much attention to him. However, as they face numerous crises in the surgical department and encounter medical challenges together, Bai Chun gradually recognizes Chen Hui's strengths. Beyond technical skills, Bai Chun rediscovers his own gentleness.
Liu Zhen Wei --- Liu Xiao Hai
Liu Zhen Wei is Chen Hui's master, the director of the Department of Surgery at the Second Hospital, and the overall person in charge of the surgical department. He has a tough exterior but a kind-hearted nature, with a witty and humorous personality. While he appears strict in his demands of Chen Hui on the surface, he secretly cares about him. Even when Chen Hui suffers from illness triggered by painful childhood memories, Liu Zhen Wei chooses to believe in him. Eventually, their relationship warms up, and they become friendly mentor and disciple who can playfully interact with each other. Unfortunately, Liu Zhen Wei's fate is full of ups and downs, and he tragically loses his loved one, Ma Lan, in an accident, ending with a sense of regret.
Pan Wen Bin --- Wang Zhi Fei
The current president of the Second Hospital, an expert in thoracic surgery, is about to retire. Throughout his life, he has been upright, reserved, valuing reputation over personal gain, and maintaining a sense of integrity. He dislikes forming cliques and pursuing personal interests. He silently watches over Chen Hui's growth, guiding him to become an exemplary doctor.
Wang Kai --- Yang Hao Yu
The attending physician in the Department of Surgery at the Second Hospital, with an average appearance and an ordinary family background, has become an ordinary doctor through diligent efforts. Despite his hard work, he is not recognized or valued within the hospital. Eventually, he makes the decision to leave the hospital, becoming a deserter from the system.
