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 is finally pushed to his limit when he has to face Sakurai, Muraki, Matsuo and Ishiguro of the upper echelon. But then, he comes to a rather surprising decision...

Reigen and Mob receive a new job. This time, their client is a wealthy man named Asagiri Masashi. He's not just rich, but super rich, so Reigen and Mob head to his mansion only to find other self-proclaimed psychics there as well. One of the psychics there happens to include the president of the Rising Sun Spiritual Union, Jodo Kirin. The job is apparently to exorcise the evil spirit that is apparently possessing his daughter, Minori.

Three years ago, Serizawa was troubled with about his psychic powers. One day, he was visited by the boss, Suzuki Toichiro. Serizawa ends up trusting him since he's the first person to understand what he's going through. But Mob then brings up the fact that Serizawa is being used and tells him, "I'll be your friend." Hearing Mob say that, Serizawa... Meanwhile, after defeating Sho, the boss starts gathering up the energy he was sharing with his followers and turns into an energy monster.

Mob continues down his path of destruction. Amongst all of the destruction and chaos, Reigen finally reaches Mob with the help of Serizawa, and he desperately tries to talk to him.