Ha Na walked out of the hospital feeling severe pain and was almost hit by a car.Meanwhile, Jung-woo is traumatized by his inability to revive the patient.In Busan in 2009, Ha Na became the top student in South Korea, which caused enthusiastic celebrations in the town.Known for her excellent academic performance and hard work, she became the center of attention.At the same time, Zhengyu also attracted everyone's attention with his excellent academic performance and gained a reputation.When Ha Na proposed to sell her family's dying business and move to Seoul to pursue better educational opportunities.Her mother is worried about this, but Ha Na firmly believes that this is an opportunity to realize her dream of becoming a doctor.News of the transfer students sparked discussion because Ha Neul and Jung Woo performed well in the exams.After they meet, they begin to compete, and there can only be one top student.Jung-woo finds Ha-neul to be a formidable opponent, and she even drinks coffee with water to save time in the bathroom.They rushed to school together, hoping to get accepted into medical school.

At the Plastic Surgery Alumni Association gathering, someone mentioned Jung-woo's popularity on NeoTube, which aroused Dae-young's jealousy.Dae-young warns Jung-woo that if he continues to be selfish, he will eventually pay the price.Dae-young then received the Minister of Health and Welfare Award.Jung-woo meets school friends and they invite him to an alumni reunion.As they drank, they talked about Ha Na, mentioning that even though she didn't get into medical school, she had accomplished some amazing things.In Ha Na's life, she is being insulted by her seniors about the paper she submitted.As an anesthesiologist, her life is more difficult than Zhengyu's, and her health is even affected by missing meal times.

In contrast, Zhengyu's life was relaxed and happy, until an incident happened.During the incident, a senior client from Macau cooperated and Zhengyu began to perform surgery on the client.Elsewhere, Ha Na seems to be feeling unwell, reaching the opening scene of the episode.Fortunately, the truck stopped before Ha Na passed out and did not hit her.While her friends tend to her, Jung-woo tries his best to save his patient, going all out to try and save her, but she eventually dies.Zhengyu reported the incident and said there were no complications during the operation.Unfortunately, there was a CCTV malfunction during the operation and the media reported the incident, causing him to panic.The case went to trial after investigation. Anticoagulants were found in her body during the autopsy, and the prosecutor found relevant evidence at the clinic.He argued with friends who seemed to believe he had thrown evidence and fingerprints in a clinic trash can.

Qingmin helped Zhengyu solve his debt problem, but he had to use everything he had to pay off the 10 billion won debt.After Ha Neul's successful gallbladder removal surgery, she collapsed in a traffic jam, which was caused by the surgery.Despite being scolded by her professor, she still moved forward with strength.However, she faced the trauma and sought help from a psychotherapist to discuss her thoughts of ending her life before the truck approached her.The therapist diagnosed her with depression, but she eventually realized she didn't have time to feel depressed.After returning home, she meets a depressed man on the terrace, who turns out to be Jung-woo.As they recognize each other, memories of the past come flooding back, and they both love and hate each other.