Sō Hishigata

He is a childhood friend and close companion of Shinpei Ajiro, and, like Ushio Kofune and Mio Kofune, he is a third-year high school student attending the same school. Sō Hishigata was born as the eldest son of the Hishigata Clinic, the only hospital on Hitogashima Island. He has a strong sense of justice and aspires to pursue a career in medicine in the future, but he feels uncomfortable with his relationship with his father, Seidō Hishigata, who is a doctor. During the incident, he attempted lifesaving measures on Ushio Kofune but deeply regrets that he was unable to save her.