She is the former Student Council general affairs manager of Suisou Academy.
Kejukuri is in the Student Council office when Misogi Kumagawa arrives. She watches on as Jakago demonstrates her ability on Sukinasaki. Kejukuri tries to attack Sukinasaki when she uses her Error Message Plate on Jakago, but gets taken over herself.
Later, the Student Council surrounds Kumagawa in an empty classroom. Like the other members, Kejakuri is confused when she tries to remember why they attacked Kumagawa. Along with the other members of the Student Council, she is defeated by Kumagawa before she can even use her ability.
After Fude Ezumachi returns to the school and begins changing the colors of almost everything, Kejukuri is shocked by the stained glass windows. When Iya Renpei compares the orange tap water to Ehime Prefecture, Kejukuri and the others tell her she is wrong.