Volume 4 (Novel)

Otherside Picnic 4: Otherside Night Trip (裏世界ピクニック３　裏世界夜行, Urasekai Picnic: Urasekai Yakou) is the fourth light novel in the Otherside Picnic series. It was released in Japan on December 19, 2019. There is no current release date for it in English. The series is written by Iori Miyazawa.