One day, shortly following the events of the Level Upper incident, Mikoto starts to feel an eerie feeling like someone is stalking her. As Mikoto continues to feel this discomforting sensation everywhere, she starts to become very paranoid and afraid. Looking into a related rumor, Kuroko and the others learn other students have also been experiencing the same thing. While Ruiko and Mii take Mikoto to the public bath, where Ruiko gives her some encouragement, Kuroko and Kazari interview Mitsuko, Maaya, and Kinoha, whose senior is also one of the victims. Thanks to Ruiko's advice and Kuroko's research, Mikoto finds the culprit behind the sensations to be Asako Jonan, an AntiSkill officer and former Nagatenjouki teacher. Having been fired from her teaching job, supposedly due to not being able to produce any Level 5 espers, Asako blamed Tokiwadai and used a device to produce special electromagnetic waves which cause discomfort in electromasters. Asako tries to escape but, thanks to Ruiko's assistance, she is quickly captured by Mikoto and the Anti-skills. As Mikoto rewards her friends for their help, Kazari unintentionally reveals Kuroko was also legitimately stalking Mikoto, prompting a swift punishment.