Sabakichi Kumasawa (熊沢 鯖吉 Kumasawa Sabakichi ) is Chiyo Kumasawa's son. He is interviewed by Ange in the world of 1998 when she attempts to discover what killed her family. Ange goes to him to investigate the people living on Nijima that have a connection to the victims. While there she obtains a PIN number, card, and a set of keys labeled A114.
- Chiyo Kumasawa - mother
Sabakichi is a heavy set man with gray hair and wearing a blue shirt.
- A "saba" is a type of mackerel.