Ren Kamishiro | 29 years old | Neurosurgeon The young ace representing the Neurosurgery department at Seiriku General Hospital. Calm, collected, and quick to judge, he has successfully performed numerous high-difficulty surgeries for brain tumors and cerebrovascular disorders. He appears strict and uses few words, but he is more sensitive to patient anxiety than anyone. He provides rigorous yet precise guidance to his juniors. He never compromises in medical care, living by the creed: "If there is a chance to save them, never give up until the end." Usually quiet, he is a reliable presence who is the first to act when his colleagues are in trouble.

Saku Ichinose | 28 years old | Orthopedic Surgeon A skilled specialist in fractures, spinal diseases, and sports injuries. Bright and sociable, he is a mood maker who naturally lightens the hospital atmosphere. He values conversation with patients and explains difficult treatment details in an easy-to-understand way. A natural genius who concentrates incredibly hard during surgery, performing procedures with delicate and precise technique. He has the kindness to think through causes with juniors rather than scolding them blindly for mistakes. However, he is relentless in cautioning colleagues who act recklessly.

Minato Shiraishi | 27 years old | Pediatric Surgeon A young genius specializing in pediatric surgery and congenital diseases. With a gentle smile and a kind voice, he is skilled at easing the tension of frightened children. In examinations, he prioritizes the patient's feelings and provides thorough explanations to families. While usually mild-mannered, he becomes surprisingly strict when a child's safety is at stake. He is well-versed in the latest medical knowledge and persistently tackles difficult cases. Deeply trusted by the staff, he is the hospital's primary source of healing.

Leo Kurosaki | 27 years old | Emergency Physician The ace leading the front lines of emergency medicine where every second counts. He remains unfazed by sudden critical patients, possessing the judgment to organize the situation and decide on the optimal treatment plan in a short time. He is blunt and foul-mouthed, but more serious than anyone about saving patients. Even in a busy environment, his instructions to those around him are precise, and he excels at leading a team. Because he tends to be reckless and puts his own rest last, his colleagues often worry about him. He shows overwhelming reliability during emergencies.

Aoi Tsukishiro | 26 years old | Cardiovascular Surgeon A young genius surgeon specializing in diseases of the heart and major vessels. He possesses outstanding skills capable of handling advanced cardiac surgeries and is known nationwide despite his youth. He has a calm demeanor and is usually quiet, but his concentration during surgery is extremely high, never missing the slightest change. He values explaining things clearly to patients and families, making difficult content easy to understand. While he has a gentle personality and dislikes conflict, he holds strong convictions regarding surgery and treatment plans. Highly trusted by his peers, he is the one relied upon for critical operations.

Rio Kujo | 26 years old | Pediatric Emergency Physician Specializes in high-urgency pediatric cases such as sudden fevers, seizures, trauma, and deteriorating respiratory conditions in children. Bright and a good talker, her approachability allows her to immediately comfort crying children. She jokes around often and is the mood maker who enlivens the group of ten, but her expression changes instantly once she begins a diagnosis. She excels in observation and judgment, quickly spotting changes in a small child's condition. She provides thorough explanations to families and stays close to anxious guardians. She is attentive and quick to notice changes in her colleagues.

Ritsu Kiritani | 25 years old | Psychiatrist A young psychiatrist specializing in mental health and psychiatric disorders. Above all, he values listening to the patient's words until the end without interrupting. With a gentle voice and a calm atmosphere, he is skilled at creating an environment where even first-time patients feel safe talking. He also excels in observation, reading a patient's state from subtle details like changes in expression, voice, or deviations from their usual self. He is the type to respect the patient's own pace without prying unnecessarily. Usually quiet, he has a strong core regarding medicine and dislikes prejudice or assumptions. He often serves as a counselor among the ten.

Iori Asakura | 25 years old | Emergency Physician A skilled doctor who handles initial diagnosis and emergency procedures for critical patients, primarily in the ER. Possessing calm judgment and swift action, she can respond composedly to sudden changes in condition. While she usually interacts with patients and staff with a soft smile, her expression becomes sharp and devoid of waste during emergencies. In the emergency field, she often plays a central role alongside Leo Kurosaki, and their decisions can determine the hospital's fate. She has a strong thirst for knowledge and is a hard worker who reads medical books even after her shift. She has a kind personality but possesses the strength to make tough decisions when necessary.

Ao Amano | 24 years old | Pediatric Surgeon A young doctor specializing in the treatment of pediatric surgical conditions and congenital diseases. He is extremely dexterous and excels at delicate surgical maneuvers. While he usually appears free-spirited and works at his own pace, he is surprisingly serious in front of patients. When interacting with children, he makes a point to crouch down to their eye level and speak in a way that doesn't scare them. He often collaborates with Minato Shiraishi as a fellow pediatric surgeon, and they respect each other's skills. He sometimes offers unique ideas for difficult cases, earning him respect despite his youth. He is the type who doesn't show his efforts on the surface.

Ryo Sakuraba | 23 years old | Cardiovascular Surgeon The youngest cardiovascular surgeon among the ten. He has extensive knowledge of heart and vascular diseases and possesses a level of calm judgment that belies his youth. His concentration during surgery is exceptionally high, and he quickly notices minute changes. Because he is taciturn and shows little expression, he may seem unapproachable, but his sense of responsibility for a patient's life is stronger than anyone's. He often handles difficult surgeries together with Aoi Tsukishiro as fellow cardiovascular surgeons, and they acknowledge each other's abilities. A hard worker who wishes to be evaluated by skill rather than age. Usually quiet, but his trust in his colleagues is deep.