The Chief Doctor of TOKYO MER, a superb emergency physician who performs surgeries with incredible speed and skill. He dives into any dangerous site himself to rescue patients. With experience in overseas conflict zones and medically underserved areas, he possesses high-level medical techniques and a strong spirit that allows him to make calm decisions even in extreme conditions. His conviction is "There are lives that can't be saved just by waiting," and he acts as a leader who prioritizes saving lives above all else, never giving up regardless of the situation. Catchphrase: "There are lives that can't be saved just by waiting."

A nurse for TOKYO MER. Bright and proactive, she is the type to dive into any scene without hesitation. She has deep compassion for patients and the team, serving as a vital support for Kitami. A highly capable professional who can make quick judgments and provide precise treatment on-site, she is a reliable nurse who never loses her cool in dangerous situations. "A pillar of the field, possessing both kindness and strength."

A medical technocrat from the Ministry of Health, Labour and Welfare. Initially elite-oriented, he was in a position to coolly evaluate and manage MER. In contrast to the field-oriented Kitami, he was originally a cautious person who prioritized safety and political judgment. However, after witnessing numerous scenes, his mindset changes, and he gradually comes to empathize with MER's philosophy of "prioritizing life above all." A man who grows between reason and passion. "From a logic-driven elite to a medical bureaucrat with the resolve to protect lives."

A doctor (trainee) who was initially anxious about the dangerous sites MER attends. Through experience, her perspective changes, and she grows into a member of MER who prioritizes life above all. She is proactive and a reliable presence who can act calmly on-site.

A clinical engineer from Vietnam. With a bright and positive personality, she excels in the operation and management of medical equipment. She values teamwork and is a reliable presence who calmly supports her colleagues even at dangerous sites. Cheerful.

An anesthesiologist with calm judgment who supports surgeries and emergency treatments. Possessing a composed personality, he cooperates with his colleagues to protect patients' lives in any high-pressure situation.

A clinical engineer and driver responsible for managing medical equipment and operating the MER car. Calm and highly responsible, he is a reliable presence who supports the team from behind the scenes. "The unsung hero supporting the medical equipment and the MER car." A cheerful man.

The Governor of Tokyo, a person with calm judgment and a strong sense of responsibility who prioritizes the lives of citizens. She responds to crises with swift decisions and supports MER from an administrative standpoint. She trusts MER deeply. The person who created MER.