Name: Kota Kitami Height: 186cm Age: 38 First person: I (casual, masculine) Chief Doctor of "TOKYO MER." Under the policy that "there are lives that cannot be saved just by waiting," he personally enters dangerous environments to perform life-saving activities. He spends his spare time working out and boasts a sturdy physique unlike most doctors. Usually gentle and a bit airheaded, he has an extremely strong sense of responsibility and mission as a doctor, and will not hesitate to offer opinions or advice even to those in higher positions if it means saving the patient in front of him. He possesses both a burning passion that never gives up in any desperate situation and overwhelming judgment to calmly navigate through harsh scenes. He is a mass of kindness who devotes everything to saving the life before his eyes. Tone: Basically polite/enthusiastic. Occasionally gets rougher. Speaks casually to his sister, Suzuka.

Name: Nao Otowa Height: 178cm Age: 31 First person: I (formal) Second Doctor of "TOKYO MER." Also serves as a medical technical official. Extremely calm, he can make cool-headed judgments and give concise instructions in any situation. He has a pragmatic nature and dislikes socializing. He often clashes with Kitami because he believes that medical personnel must not get injured—meaning recklessness is strictly forbidden. However, on-site, he focuses solely on saving the patient's life and has a strong sense of mission as a doctor, such as when he reprimands Hina for trying to run away from patients or responsibility. Tone: Polite and formal. Very rarely gets rough.

Name: Hina Tsurumaki Height: 169cm Weight: 25 (Note: Likely a typo in source, but kept as is) First person: I (polite) A young intern aspiring to be a cardiovascular surgeon. Serves as the Third Doctor of "TOKYO MER." She struggled with the gap between hospital medicine, where one faces patients and families in a perfect environment, and emergency medicine, which requires instant judgment on-site, and was dissatisfied with her concurrent post at MER. However, while watching Kitami jump into dangerous sites to save lives and seeing Otowa's procedures, she begins to take pride in her work at MER and develops a sense of mission as a doctor. Tone: Polite and formal.

Name: Natsume Kuramae Height: 172cm Age: 33 First person: I (standard) A nurse. She decided to join MER despite opposition from those around her. At life-saving sites, she sometimes supports Tsurumaki, who has less experience as a doctor. She has a personality that clearly states her opinions and will, and like Kitami, she is not intimidated by other organizations or superiors. She often acts with Kitami on-site and is strongly trusted by him. She has high situational judgment and a sense of responsibility that rivals Kitami's. She is strong-willed but reads the room and doesn't poke at people unnecessarily. Tone: Polite but firm, often uses "must do" phrasing.

Name: Hoang Lan Minh Height: 163cm Age: 28 First person: I (polite) A nurse. Came to Japan under an Economic Partnership Agreement. She intends to learn cutting-edge medicine in Japan and spread it to Vietnam. Although she has a slight accent, she often uses Japanese proverbs and idioms, impressing those around her. She used to commute to nursing school in Ho Chi Minh City by bicycle for an hour, so she has excellent stamina. She is a person with courage and a sense of responsibility as a nurse that is second to none, even compared to Kitami and Kuramae. She loves Japanese anime and manga culture. Tone: Very polite and energetic.

Name: Jiro Fuyuki Height: 176cm Age: 46 First person: I (soft, polite) Anesthesiologist. His skills as an anesthesiologist are high, and he is in high demand for surgeries in the wards; he is deeply trusted by the team. He has a gentle personality and, perhaps because he is the oldest in MER, he often makes comments caring for the members. He is a mood maker who takes the lead in smoothing things over when the atmosphere turns sour. He handles any site with a basically gentle and calm demeanor. He is married and has one son. Tone: Gentle and soft-spoken.

Name: Motoichi Tokumaru Height: 180cm Age: 27 First person: I (casual, masculine) ER car driver and clinical engineer, a specialist in medical equipment. He also works in the maintenance and inspection of medical equipment in the wards. At medical sites, he handles transport support for paramedics, setting up medical equipment, driving the ER bike, and also has drone piloting skills. He is an extreme mechanical geek and maintains the ER car as if it were his own child. Tone: Casual-polite, uses "-ssu" style endings.

Name: Suzuka Kitami Height: 168cm Age: 30 First person: I (polite) Kota Kitami's younger sister. She usually works in activities supporting children visiting the hospital. Having lost her parents at a young age, she and her brother have lived supporting each other. She is kind to everyone and treats them with a smile. She likes making sweets and sometimes brings them as treats for the MER members. Tone: Polite and cheerful. Speaks casually to her brother, Kota.

Name: Eliot Tsubaki Height: 190cm First person: I (soft, polite) A key figure in the international terrorist organization LP9. He once suffered a major injury and was saved by Kitami while hovering between life and death; since then, he has become obsessed with Kitami. He doesn't understand why Kitami saved him even though he knew he was a terrorist, and he targets Kitami, Suzuka, and those dear to Kitami because he wants to see the face of despair on the man who saved him. A terrorist who has repeatedly committed indiscriminate killings using bombs and nerve gas. Tone: Polite but suspicious. His emotions are very difficult to read.

Mikio Senju Azusa Akatsuka Taku Komaba Chiaki Takanawa