Psychics fight with supernatural phenomena that cannot be explained by science. Arataka Reigen that runs the Spirits and Such Consultation office is one of those psychics... well, a fake one. His only hope is a super dull middle-schooler named Shigeo Kageyama, a.k.a. Mob. 27% towards Mob's explosion.

Mob is challenged to a one-on-one fight with Black Vinegar Middle School's shadow leader, Teruki Hanazawa, otherwise known as Teru. Mob doesn't use his powers but Teru goes all out on him, destroying everything around him. Teru continues to unleash his incredible power when Mob suddenly remembers a tragedy that happened between him and Ritsu...

Mob, Ritsu, and Teru are trapped in a room where they can't use their powers. And then, someone rather unexpected shows up in front of them: Mob's master and self-proclaimed psychic, Reigen. Somehow, Reigen is mistakenly thought as the boss of Claw, and easily manages to get inside and successfully saves Mob and the others. However, there is no way that Ishiguro would let them get away with this. As they try to escape the 7th Division, the upper echelon stands in their way.

Mob gets trapped inside a parallel world created by Mogami Keiji. Minori ends up transferring to his class, and Mob becomes the target of bullying. He can't ask anyone for help, and his negative emotions start to build inside. The truth behind the tragedy that Mogami went through when he was alive comes to light. Meanwhile, Reigen and the others were waiting for Mob to regain consciousness back at the Asagiri mansion. Dimple attempts to save Mob by infiltrating Minori's body.

Sho finally arrived at Seasoning Cultural Tower and was greeted by Shimazaki, one of the Ultimate 5. Ritsu faces off with Shimazaki and urges Sho to go ahead. However, Shimazaki is able to teleport and he gets ahead of him. Meanwhile, Mob has woken up and is heading to the tower and is also approached by one of the Ultimate 5, Minegishi. Mob has a difficult time dealing with Minegishi, who controls plants, but then someone rather unexpected comes to his aid.