|Nanjo Terumasa南條 輝正O|
|Hair||Bald, Moustache, White|
|Clothes||Lab Coat, Necktie, Shirt, Trousers, Vest|
|Role||Father, Friend, Grandfather, Medical Doctor|
|Visual novels||Main character - Umineko no Naku Koro ni|
Side character - Umineko no Naku Koro ni Chiru
|Voiced by||Ishizumi Akihiko|
Nanjo is Kinzo's personal physician and close friend. He is also Kinzo's opponent in chess. He is one of the few people Kinzo, who has grown fanatical in his suspicions, opens his heart to. He has a bighearted disposition, and has come to the island for a long time, never getting upset by Kinzo's hot temper. He owned a clinic on Niijima, the island closest to Rokkenjima, but he resigned in favor of his son Masayuki.