Kazuma Aoike holds the position of student council president amid the zombie outbreak at her school. She leads by organizing survival strategies for students trapped on the rooftop. As the group prepares to evacuate, she intentionally stays behind in the public address room rather than escaping. Her aim is to broadcast a school-wide message warning potential survivors of the escape path via the breached front gate. This choice knowingly exposes her to extreme danger inside the infested building.

Before the outbreak, she aspired to become an idol. Cornered by approaching zombies in the PA room during her final moments, she enacts this dream symbolically by delivering a solo song over the intercom. Her ultimate fate is implied following this act, though precise details remain unspecified. Her actions consistently emphasize structured defiance and personal sacrifice throughout the crisis.