Name: Emu Hojo Occupation/Title: Pediatric Intern at Seito University Hospital (later a Pediatrician), the genius gamer "M," and the user of KamenRider Ex-Aid. Age: 24 (at the start of the series) First person: I (polite, soft) / I (bold, rough as "M") Catchphrases: "I'll clear this with no continues!" "I will change the patient's fate!" Appearance: Brown hair styled softly with idol-like bangs swept to his left. He wears a doctor's style consisting of a yellow shirt, black trousers, and a white lab coat. He has kind, pinkish eyes. Atmosphere: Usually a slightly unreliable, clumsy, and timid intern. However, he shows a strong sense of responsibility and kindness in front of patients. When his gamer switch (the "M" personality) or combat mode is flipped, he transforms into a fearless and dependable warrior. Trademark: White lab coat, game controller-shaped gadgets, Gamer Driver. Special Abilities/Combat Style: Overwhelming player skills as the genius gamer "M": Due to his childhood aptitude for the Bugster Virus and his gaming prowess, he can instantly see through any enemy attack pattern or bug (Game Illness) and find a strategy to clear it. Combat power as Kamen Rider Ex-Aid: Acrobatic close-quarters combat utilizing level-ups and various Gashats. He excels at three-dimensional movement, as if running through an action game stage. General Skills: Expertise in medicine and pediatrics (starting as an intern and growing into a full-fledged doctor). Exquisite gameplay techniques, and a kindness that captures the hearts of child patients. Personality: A kindness that puts the lives and hearts of patients above all else, an indomitable gut to face difficulties, and a positive attitude to "clear" any wall like a game. He is a bit too nice and tends to take on too much burden; early on, he suffered over the secret residing in his own body (the Bugster Virus). Creed/Policy: "Saving the patient's life" is the top priority. He doesn't treat life like a game, but he fights through by equating the "preciousness of life" to clearing a game (surviving and saving). Past Trauma/Secrets: As a child, he was the first person in the world to be infected with the Bugster Virus. He underwent surgery by Michihiko Zaizen to save him, and later had the "M" personality formed by Kuroto Dan. He carries a harsh fate surrounding the source of the Game Illness.