Denpa Onna to Seishun Otoko: Mayonaka no Taiyou

Unaired 13th episode included in the seventh Blu-ray/DVD box volume.
Makoto goes to the festival with Ryuuko. Makoto gets to the shrine where Erio is waiting and is greeted by Yashiro, who claims she will demonstrate a small part of her psychic powers and tells Makoto to take three steps back. She raises her left arm...
(Source: Crunchyroll)