text: Saya and Saeko comment that Shido's actions are like that of a recruiter for a religious cult. Shido permits the main group to leave the bus except for Shizuka, but Kohta expresses his disapproval of Shido's actions and grazes Shido's face with a nail gun shot. Later on, Shido watches over an orgy among his followers. He finds this behavior acceptable during the group's "free time". Shido declares his followers "angels that will help usher in a new age", but when Yamada disagrees and shows concern for his own family, Shido convinces his followers to eject the "weak link" for the sake of the New World, and they callously throw the teen off the bus and leave him to be eaten by "them".
  Koichi Shido is the son of Ichiro Shido, a politician. In the manga, when Koichi's mother dies, he becomes a teacher at Tokonosu where his father is a director, but his father reveals he has an illegitimate son, and forces him to work in the shady family business. One of the dealings involves stopping Rei’s father from investigating the Shido family’s funding; Shido arranges for Rei to be held back a year. When Rei threatens to kill Shido with her bayonet, Shido dares her to do it, but she cannot, as he is not worth the trouble. Soichiro orders Shido and his student followers to leave, and he complies, but a high-altitude nuclear explosion causes both the bus and nearby forklift with a concrete barrier to stall and they collide. He recovers consciousness in time to see the undead horde that advances through the gap in the barrier.
  Shido reappears at the entrance to Shintoko Third Elementary School, which is a gathering point for some of the survivors.