Amamiya Gorou

Gorou is a gynecologist doctor at a country hospital. He supervises Ai Hoshino's pregnancy. At some point he knew Sarina when she was a patient in the hospital. [spoiler]He is pushed to his death while pursuing Ai's stalker when the latter came to the hospital. He reincarnates as Ai's son, Aquamarine, and retains his memories of his previous life.[/spoiler]