Eiichiro Takeba
Eiichiro Takeba is Yukari’s father and one of the scientists working for the Kirijo Group during the Shadow Incident in 1999. The corporation blamed the accident on him even though he was trying to blow the whistle on their dangerous and unethical experiments. Eiichiro died while making a video for Yukari, which Ikutsuki later altered to manipulate SEES.