Otherside Picnic

is a light novel series by Iori Miyazawa with illustrations by shirakaba. It was published by Hayakawa Publishing under its imprint starting February 23, 2017.

A manga adaptation by Eita Mizuno was serialized starting March 2018. J-Novel Club has also licensed it for English release. In December 18, 2018, a PV was released and was confirmed the series would be getting an anime adaptation, but further details have not been released.

Plot
Her first encounter with Toriko Nishina was on the Otherside after seeing "that thing" and nearly dying. Ever since that day, exhausted university student Sorawo Kamikoshi's life changed. In this Otherworld, full of mystery, which exists alongside our own, dangerous beings like the Kunekune and Hasshaku-sama that are spoken of in real ghost stories appear. For research, profit, and to find an important person, Toriko and Sorawo set foot into the abnormal.

Other Sources

 * Light Novel:
 * Light Novel:
 * Manga:
 * Manga:
 * Wikipedia (Japanese)