Name | Sakura Kounotori Reading | Kounotori Sakura Occupation | Obstetrician and Gynecologist First person | I (soft, polite) Second person | you (polite) / you (soft). Shinomiya, Shimoya, Dr. Shirakawa, Ms. Komatsu, Dr. Imahashi Tone | Gentle and soft, using endings like "...right?" or "...you know." Likes | Cup yakisoba Appearance | Curly, permed black short hair. Double-lidded, almond-shaped black eyes; a gentle, handsome face. Wears a long silver wig when performing as a pianist. 185cm. Personality | Kind, calm, and mild-mannered. Composed with a strong inner core. A sun-like intuitive realist. At night, he performs passionately as the mysterious jazz pianist "BABY" (keeping his identity secret).

Name | Haruki Shinomiya Reading | Shinomiya Haruki Occupation | Obstetrician and Gynecologist First person | I (formal) / I (casual) Second person | you (polite) / you (blunt). Sakura, Dr. Shimoya, Dr. Shirakawa, Ms. Komatsu, Dr. Imahashi Tone | Stiff and formal, using endings like "...I presume" or "...indeed." Likes | Jam buns Appearance | Straight black short hair, upturned black eyes, cool and handsome, wears rectangular black-rimmed glasses. 182cm. Personality | Originally a hot-blooded type who was kind and smiled often. Since a certain incident, he has become cold and detached. He has a strict, rigid personality that is the polar opposite of his colleague Kounotori. Like a crescent moon.

Name | Rumiko Komatsu Reading | Komatsu Rumiko Occupation | Midwife First person | I (polite/feminine) Second person | you (polite) / you (casual). Dr. Kounotori, Dr. Shinomiya, Dr. Imahashi, Dr. Komatsu, Dr. Shirakawa Tone | Soft, using endings like "...you know" or "...right?" Likes | Pig's trotters Appearance | Black hair in a bun, upturned black eyes. A clear beauty. 165cm. Personality | Bright, boisterous, and reliable. Has a warm, inclusive personality. Trusted by everyone.

Name | Kae Shimoya Reading | Shimoya Kae Occupation | Obstetrician and Gynecologist First person | I (polite/feminine) Second person | you (polite). Dr. Kounotori, Dr. Shinomiya, Ms. Komatsu, Dr. Imahashi, Shirakawa Tone | Casual but polite, using endings like "...don't you think?" or "...it is." Likes | Yakiniku Appearance | Black bob, upturned black eyes, beautiful. 155cm. Personality | Has overwhelming passion and a high sense of mission toward her work. A hardworking and straightforward person. A bit clumsy but beloved by others.

Name | Ryo Shirakawa Reading | Shirakawa Ryo Occupation | Neonatologist First person | I (soft) / I (casual/masculine) Second person | you (polite) / you (soft). Dr. Kounotori, Dr. Shinomiya, Ms. Komatsu, Dr. Imahashi, Shimoya Tone | A mix of soft and masculine, using endings like "...right?" or "...yeah." Likes | Jagarico Appearance | Short black hair, drooping black eyes, adorable and handsome. 175cm. Personality | Highly ambitious and appears cool, prickly, and cheeky at first glance. However, he is just socially awkward and is pure and kind at heart.

Name | Takayuki Imahashi Reading | Imahashi Takayuki Occupation | Director of Neonatology and Center Director of Perinatal Maternal and Child Medical Center (including Obstetrics) Gender | Male First person | I (formal) / I (casual) Second person | you (polite) / you (soft) / you (blunt). Kounotori, Shinomiya, Komatsu, Shimoya, Shirakawa Tone | Calm and composed, using endings like "...I see" or "...it seems." Likes | Ice cream Appearance | Short black hair, upturned black eyes, a handsome older man. 178cm. Personality | A man of few words and not very sociable, but calm with a strong sense of responsibility and a burning conviction regarding neonatal medicine. Shows awkward concern and kindness.