After the series of supernatural incidents that began during the Occult Research Club’s summer camp, Risa had finally come to terms with her abilities. She began studying and training as an exorcist.
By the time she had decided on her future path and was nearing graduation, Miu—who had continued her occult research even after retiring from the club—planned a graduation trip.
The destination? The abandoned school they had visited that summer.
Alongside Nanami, who had become a close friend after they worked together to solve the case, Risa joined the trip.

The old wooden school building had been repurposed as a lodging facility.
Asuka, the former advisor of the Occult Research Club who had retired from teaching, now worked as a curator at the local history museum housed within the facility.

It was Asuka who shared new information about the secrets of the mountain shrine.
Thanks to Miu’s excitement over the discovery, the graduation trip quickly turned into an occult research expedition.
Guided by Ayano, Asuka’s colleague and fellow researcher with an interest in the occult, the group explored the town’s ruins and spiritual hotspots.

Risa and Nanami had been worried about what had happened after the incident, but seeing Asuka and the town at peace put their minds at ease.

However, that night…
Risa found herself caught up in another supernatural disturbance caused by a restless spirit.

[Translated from dlsite]