Satoru Nanpo

Satoru Nanpo' (南浦 聡 Nanpo Satoru'') is a professional mahjong player and grandfather/caretaker to Kazue Nanpo. In the manga, he is seen with Kazue in the background of the arena, watching the team tournament matches.

Appearance
Satoru is an older gentlemen with balding black hair and a small beard.

Playing Style/Abilities
Satoru is skilled enough to be a professional mahjong player and he is strong in the south wind rounds.

Individual Tournament Arc *Anime Only Arc*
Satoru first appears rooting for Kazue Nanpo during her matches at the individual tournament. At the intermission, when they see a few friends hanging out he tells her of his regret that she had to transfer to a weak school thanks to him. However she assures him that she doesn't need weak teammates. After Kazue loses her final game of the day, he was amazed that someone could out play her in the south wind.

Training Camp Arc
Satoru is mentioned by Takako Kubo revealing her surprise that he even had a granddaughter.

Etymology

 * The name Satoru means "intelligent, clever, bright" (聡).
 * Satoru's surname Nanpo means "south" (南) (nan) and "bay, inlet" (浦) (po).