Nanjou Masayuki is Nanjou Terumasa's son. A rather reclusive person who has tried to move on with his life after the Rokkenjima incident, but who has had trouble doing that thanks to a badgering news media that he believes has dragged his father's reputation through the dirt. He had a daughter, but she was terminally ill and died at a young age. It's from him that Ange learns about the mysterious letters that were sent to surviving relatives of the Rokkenjima victims.