Rando and his friends must investigate the strange incident with their teacher and defend the island from the monster in a dream world.

Ryuuhei Oda and Rena Mouri accidentally enter the other side of reality and encounter a grotesque creature.

Ryuuhei and Rena are joined by more experienced slayers, Aruto Fushibe and Jessica Clayborn, as they fight the creatures and learn more about the other side.

The project was announced on March 16, 2021, with a mobile game released on September 30, 2021, as well as an anime television series, which aired from July 10 to October 2, 2021, on Tokyo MX and other channels.

[3] Yoshikazu Kon is directing the series at Sanzigen, with Hiroshi Ōnogi writing the script, BlasTrain designing the characters, and Kohei Tanaka composing the music.