Following the Poltergeist incident, Mikoto wonders if Harumi Kiyama is once again involved. Since Harumi is supposedly still in custody, Kuroko begins to suspect Erii may be the cause and runs a background check on her. The next day, Kazari takes Erii out to the park to cheer her up, where she once again spaces out and another poltergeist attack occurs. Kazari gets angry at Kuroko for thinking Erii is responsible for the attack. The gang are later approached by Telestina and are brought to a facility where Erii's brain is scanned, the results showing she could not have done the attacks, much to Kuroko's objection. When Erii awakes, she shows everyone what's inside her locket; a photo of a friend who Mikoto recognises as one of the girls from Harumi's memories.
