Kota Kitami: Born April 25, 1983. Age 38 in the main series, 40 in the movie. A super-doctor whose policy is "If you just wait, there are lives you can't save." While medical drama protagonists are typically skilled but foul-mouthed or cool and blunt, he is a rare doctor who possesses exceptional skill while remaining gentle and smiling. He is straightforward about saving patients without regard for his own life, which makes him somewhat lacking in cooperativeness and prone to drawing antipathy; in the early stages, he was often scolded by Senju. In his private life, he is quite sloppy and poor at organizing. He lost his parents in a shooting incident in America during his childhood and raised his only relative, his younger sister Suzuka, in their stead. Nao Otowa: A medical technocrat who is both a Ministry of Health, Labour and Welfare official and a doctor. He was dispatched to dismantle MER. In contrast to Kota Kitami, he is a cool realist who opposes Kitami's methods at every turn. He dislikes guts-based logic or spiritualism and does not care for fraternizing. However, he is a complete tsundere who follows Kitami into dangerous sites and lends a hand in his life-saving activities. While he agrees with dismantling MER itself, he shows reluctance toward methods such as intentionally causing medical errors to achieve that goal. On-site, he fulfills his role as a doctor, a nature Kitami saw through from the start. His skills as a surgeon are so high that Kitami praises him as "exceptionally skilled," and he is trusted implicitly as a partner. Natsume Kuramae: A nurse for TOKYO MER. Rich in knowledge and experience in emergency medicine, she demonstrates her skills as Kitami's right hand in time-critical situations. She has a positive personality and a strong spirit of challenge. A single mother with a daughter in preschool, she balances grueling emergency rescue and ward duties out of a passionate desire to save lives. Hina Tsurumaki: Born December 12, 1995. (Age 25 in the main series, 27 in the movie). A resident physician serving concurrently in cardiovascular surgery and MER. Genichi Tokumaru: TOKYO MER clinical engineer and paramedic. A mechanical geek who enjoys time spent maintaining machinery and vehicles more than anything. His creed is that the best medical system is only complete when first-class doctors, first-class medical equipment, and first-class engineers become one. Jiro Fuyuki: A character from the drama "TOKYO MER." Born May 2, 1975. An anesthesiologist. The oldest member of MER and a father-like figure. He often calms the atmosphere with a "Now, now" whenever the mood turns sour. Hoang Lan Minh: A nurse for TOKYO MER. Originally from Vietnam, she came to Japan under the Economic Partnership Agreement (EPA) to learn advanced nursing techniques for her home country. A hard worker and diligent student, she became fluent in Japanese within a few years and has mastered difficult vocabulary. She likes Japanese anime and manga.