What is the plot of Mob Psycho 100?

Mob Psycho 100 is a manga and anime about a boy named Shigeo Kageyama, nicknamed Mob. He looks like a normal boy but has powerful psychic abilities that he struggles to control. He tries to live an emotionless life to avoid triggering his power and learn from who he believes is a Psychic master, but is actually a con-man named Arataka Reigen. Mob's desire to live a normal life keeps getting interrupted by trouble and enemies who come after him, which increases his suppressed emotions bit by bit. When the internal counter reaches 100, he explodes in a powerful emotion.