Shuuseki Ijuin (伊集院 秀石 Ijuuin Shuuseki?) is the president of IPC (Ijuuin PET Company, named BlazeQuest in MegaMan NT Warrior) and the father of Eugene Chaud. Except for Mega Man Battle Network Official Complete Works, where his Japanese name is kept, Shuuseki's name was not shown in any official English sources. However, one can assume that Shuseki and Chaud share the same family name in English; thus he is unofficially known as Shuseki Chaud in the games and Shuseki Blaze in the anime.