Mob Psycho 100 is about Shigeo "Mob" Kageyama, a middle schooler with immense psychic powers who suppresses his emotions to avoid unleashing catastrophic psychic explosions, working with a con-artist mentor while navigating school, paranormal threats, and personal growth to understand himself and the world. The series uses psychic battles as a metaphor for Mob's internal struggles with self-acceptance, dealing with repressed feelings, and finding genuine connections, all while confronting other powerful espers and spirits.