朝日奈 雅臣

Birth Date: 1979/04/24.
Occupation: Pediatrician.

Masaomi is the eldest son of the Asahina family. He works as a pediatrician, which fits his children-loving and gentle personality. Ever since their father passed away, Masaomi has been taking care of Wataru and becomes the father figure of his life. He rarely snaps or gets angry over anything, but he turns incredibly terrifying when he does. Masaomi is rather laid-back, and he spends most of his free time relaxing at home. He loves his family a lot.