Shigeo Kageyama, an eighth-grader known as Mob, discovered his immense psychic abilities early in life. Recognizing the inherent dangers of such power, he chose to suppress it, using his talents solely to woo Tsubomi, a girl he has long admired, though her interest quickly fades. Seeking guidance, Mob joins the agency of Arataka Reigen, a fraudulent psychic who manipulates Mob’s powers for small profits. This arrangement turns the exorcism of spirits into a routine part of his dull existence. Yet, the energy Mob releases is merely the surface; if his overwhelming emotions and latent potential go unchecked, they will trigger a catastrophic explosion that will transform him beyond recognition. The countdown to this explosion continues relentlessly, and halting it seems impossible.