Guanshan, a daughter of a wealthy family, insists on interning at Sunshine Hospital despite her father Guan Minghai's best efforts to dissuade her from doing so, and she and Han Zihang, an attending cardiac surgeon who has just returned from further studies in the United States, do not get along without a fight. Meanwhile, Gong Fan, who was nicknamed "Robot" because of his outstanding academic performance at school, and Ren Qiu, a doctor who came from a county hospital to be trained on his behalf, start their study life together with Guan Shan under the leadership of Dr. Sima Boming, the signature doctor of the Cardiac Surgery Department. A pregnant female inmate, Hao Lin, is admitted to the hospital. Han Zihang, together with an obstetrician and gynecologist, saves Hao Lin's life in time and helps her give birth. Guan Shan is assigned to look after Hao Lin, but Hao Lin suddenly disappears. Guan Shan realizes that Hao Lin is not her husband's murderer and tries to lure Hao Lin to show up, but Hao Lin takes the newborn baby hostage in the heat of the moment. Han Zihang and Guan Shan work together to convince Hao Lin to surrender and solve the crisis. As a result, Han Zihang is impressed by Guan Shan, and the two of them get closer. A special patient, who is almost a vegetable, is admitted to the hospital under the personal care of President Ye Minghui. This person is called Fu Hongbo, who is an old classmate of President Ye Minghui's who was in the army together in the early years, and is also the founder of the Sunshine Foundation of the Sunshine Hospital. Ye Minghui announced that Han Zihang would be in charge of the patient's treatment, and that Han Zihang hoped to join hands with Sima Boming to treat the patient. Gong Fan is assigned to take care of Chen Jia Zi, an old patient with a stubborn temperament. Carefully, Gong Fan realizes that Chen Jia Zi is extremely strong on the surface, but has extremely low self-esteem on the inside because her parents hid her divorce from her. Gong Fan convinces Chen Jia Zi's parents to cooperate with the doctor to cure Chen Jia Zi's heart disease first. Sima Boming expresses his support and tells the doctors-in-training that a doctor who can cure a patient's heart disease must be a good doctor. As Chen Jiazi's surgery is about to begin, Gong Fan confronts Chen Jiazi and reveals her heart condition. At the same time, Chen Jiazi's parents also reveal their feelings in front of their child and promise Jiazi that when her surgery is completed, they will definitely build a beautiful family for her daughter that she will long for. Chen Jiazi's surgery was a success and Sima Mingbo's reputation was enhanced and he y thanked Gong Fan from the bottom of his heart. At the same time, Gong Fan collapses next to the operating table due to a genetic disease within his family. Han Zihang learns from his grandma that his mother was killed by a man named Fu Zhanyuan, and instructs him to find Fu Zhanyuan in his grandma's lifetime so that he can go to Han Zihang's mother's grave to atone for her sins. The relationship between Guan Shan and her father Guan Minghai is on the verge of breaking down. The premature departure of her mother also gave her a dual personality. In order not to go back to that cold home, Guan Shan rents a house outside. Guan Minghai secretly operates so that Guan Shan can rent the house smoothly. Guanshan meets a pregnant woman named Wei Xiaofeng, and the two of them become very close, but they don't realize that Wei Xiaofeng is her stepmother. Han Zihang and Guan Shan become more and more attracted to each other, and they go to visit their grandma. Guan Shan learns that Fu Zhanyuan, the man who killed Han Zihang's mom, is Han Zihang's father. Guan Shan tells Han Zihang what happened, and Han Zihang immediately feels deafened. A vicious traffic accident sends three people to Sunshine Hospital. Two of the men are dying, while Yu Dali, the owner of the renovation company, appears unharmed. When he hears that Guan Shan is the daughter of real estate tycoon Guan Minghai, he begins to stalk Guan Shan, who is disgusted with him but still helps to contact Guan Minghai. Xiao Zhao is on the verge of death due to the failure of resuscitation. On his deathbed, he tells Han Zihang and Sima Boming that he is willing to transplant his liver to his father, who can't afford a transplant, to thank him for raising him. The old man mourned and told the two doctors that Xiao Zhao's birth parents were good friends of the old man, who died in a fire, and that the old man and his wife had adopted Xiao Zhao to comfort their old friend's soul. The doctors present were saddened. Gong Fan's mother sees Sima Boming as her son-in-law. Sima Boming tells Gong Fan that he is not suitable for him, and Gong Fan is outwardly unconcerned, but his heart is very torn. Han Zihang brings his grandma to Sunshine Hospital. Ye Minghui tells his grandma that he is not the one who has been sponsoring Han Zihang for many years, but Fu Hongbo. Grandma recognizes Fu Hongbo as Fu Zhanyuan, who has changed his name, and faints in a rage. When the grandmother wakes up, she asks Han Zihang not to use his hand to save Fu Hongbo, and Han Zihang agrees to the old man's request. When the grandma resigns and passes away, Han Zi decides to keep his promise to the grandma and give up his surgery on Fu Hongbo. And when Fu Hongbo hears about it, he tells Ye Minghui that if Han Zihang hadn't come to operate on him, he would have preferred to go after Han Zihang's grandma. Guan Shan convinces Han Zi Hang, who finally agrees to take up the scalpel again to accomplish the redemption of others and himself. Ren Qiu's mother is seriously ill and hospitalized. Seeing that Ren Qiu's mother is delayed because she can't afford to pay the medical bills, Ren Qiu's three brothers take the risk of stealing the equipment and materials from the construction site and injuring the dog. Ren Qiu did not know what to do. Guan Shan, who was informed of the situation, quietly sold her sports car and paid Ren Qiu's medical expenses, Dog's operation fee and the compensation for the damages of the construction site, which helped Ren Qiu to solve his urgent problems. Ren Qiu swears to repay all those who have helped him. Sima Boming is in charge of the operation of Zhao Qiang, a rural child, and the operation is going well and success is imminent. At that very moment, his son Sima Xiaochao, who had been in a car accident and suffered a blood clot in his chest, also needed his surgery. Sima Boming chose to insist on getting Zhao Qiang's surgery done, saving Zhao Qiang's life, while Sima Xiaochao's life died prematurely. Yuan Zhuo, his ex-wife, said she would never forgive Sima Bo Ming in this life. Sima Boming, deep down in his heart, falls into deep self-blame and faces a breakdown. Gong Fan sympathizes with Sima Bo Ming's suffering and she quietly loves and cares for him. Sima Boming harshly rejects Kung Fan and wants to be left alone. When his ex-wife Yuan Zhuo refuses to tell Sima where his son is buried, Sima goes crazy. Kung Fan tries to find out the address of Sima Bo Ming's son's grave. Sima Bo Ming is touched by Kung Fan and they embrace each other.
The two of them embraced each other tightly.