Shuuseki Ijuin

Shuuseki Ijuuin (伊集院 秀石) is the president of IPC (Ijuuin PET Company, named BlazeQuest in MegaMan NT Warrior) and the father of Enzan Ijuuin (Eugene Chaud / Chaud Blaze). He is a very cold person, even with his son.

MegaMan Battle Network 3
Shuuseki had a short appearance in MegaMan Battle Network 3, where he is watching the N1 Grand Prix and is captured by the WWW member Sunayama, who wants Chaud to trade his PET and ProtoMan.EXE by him. Lan appears and helps Chaud free his father. Chaud's father appear again in the end of the game.

MegaMan NT Warrior
Shuuseki appeared in a flashback in episode 49 of MegaMan NT Warrior Axess, where he talks with Chaud. A young Shuuseki also appeared in episode 32 of Rockman EXE Stream.