Setsu Tohyama/Plot

GIII League Arc
Setsu and Magane were mentioned in Volume 10, where Kinji borrowed money from them in order to get equipment from Aya Hiraga.

Normal Life Arc
Prior to Kinji and Reki arriving, Setsu was informed they were transferring schools and would be staying at their home. Also, she would meet her two unknown grandchildren, Kinzou (GIII) and Kaname. When Kinji and Reki arrived, Setsu used Clear Fall Water on her husband due to being him being highly attractive toward Reki. At some point, Setsu would teach Kaname how to play Shogi. She would late give GIII the name, Kinzou, due to calling him Chi-Sando and other things by mistake.