After Ken Kaneki had been captured by Aogiri Tree, Banjou invited Kaneki to Anti-Aogiri's formation meeting. The goal of Anti-Aogiri was the escape from the 11th Ward Base. They planned to escape on the day when Noro, Ayato Kirishima and Yamori would be absent from the hideout. Banjou planned the escape because he had determined that he and his comrades were no longer of any value to Aogiri. Thus, he feared for the lives of his comrades and concluded that he had to help them escape from the hideout before Aogiri would kill him.