Following the Poltergeist incident, Mikoto wonders if Harumi Kiyama is once again involved. Since Harumi is supposedly still in custody, Kuroko begins to suspect Eri may be the cause and runs a background check on her. The next day, Kazari takes Eri out to the park to cheer her up, where she tells her about a friend she is looking for. She then spaces out again and another poltergeist attack occurs. Kazari gets angry at Kuroko for thinking Eri is responsible for the attack. Telestina take Eri and the others to a research facility for some tests, the results showing she could not have done the attacks, much to Kuroko's objection. When Eri awakes, she explains that she goes into a daze whenever she hears the voice of her friend, Banri Edosaki. When Eri shows everyone a picture of her in her locket, Mikoto recognises her as one of the child errors from Harumi's memories.
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