A sophomore year student at Kiwiigami High School that was secretly murdered by the Clay Doll and left lifeless within the school's secret Chapel. In the dream of protagonist Yaso Inaba, she warns him about the school's reputation as a stronghold for an evil that is contained, and that those who believe in the heretical teachings will summon that very evil. She then tells him to run away from the school with everyone before the lunar eclipse. Before and after her death, Misaka is known to be very shy and soft spoken, but loves and cares for others and putting herself aside for that very person even if she's gonna get bullied hard. Which is the main issue of life for her as it is constant from others. Nevertheless, she is easily forgiving.