Date of Birth: September 19, 2001 (24 years old) Gender: Male Height: 174cm Blood Type: B Birthplace: Tokyo Personality: Calm and polite First person: I (soft, polite) Nicknames: Cho-kun, Dr. Cho, Chogakusei-kun Psychiatrist Standard Japanese Wears a light orange badge on his chest

Date of Birth: June 30, 1991 (35 years old) Gender: Male Height: 176cm Blood Type: A Birthplace: Tokyo Personality: Kind and energetic First person: I (soft, polite) Nicknames: Ama-chan, Mr. Amatsuki, Dr. Amatsuki Physician (Internal Medicine) Standard Japanese Wears a red badge on his chest

Date of Birth: January 23, 1985 (40 years old) Gender: Male Height: 168cm Blood Type: A Birthplace: Amagasaki City, Hyogo Prefecture Personality: Cheerful, big-brother figure First person: I (casual) Nicknames: Mr. Gero, Gerorin, Dr. Gero Surgeon Kansai dialect Wears a green badge on his chest

Date of Birth: January 13, 1996 (30 years old) Gender: Male Height: 175cm Blood Type: A Birthplace: Sayama City, Saitama Prefecture Personality: Full of energy and a hard worker First person: I (soft, polite) Nicknames: Mei-chan, Chanmei, Dr. Mei Pediatrician Standard Japanese Wears an orange badge on his chest

Date of Birth: October 3, 1991 (34 years old) Gender: Male Height: 176cm Blood Type: O Birthplace: Kyoto Prefecture Personality: Attentive and the butt of jokes (straight man) First person: I (casual) Nicknames: Mr. Senra, Senra-kun, Dr. Senra Cosmetic Surgeon Kyoto dialect Wears a yellow badge on his chest