Mob Psycho 100 (Japanese: モブサイコ100 Hepburn: Mobu Saiko Hyaku) is a Japanese webcomic created by ONE, which began publication on Ura Sunday on April 18, 2012, and concluded on December 22, 2017.[3] A Chinese translation started publication in Taiwan on April 16, 2014.It has been available online on Shogakukan’s mobile app MangaONE since December 2014. Dark Horse Comics has licensed the series for English publication.

An anime television series adaptation produced by Bones aired between July and September 2016.The English dub of the series was released by Funimation in December 2016.[9] A live-action series adaptation premiered on January 18, 2018. A second season of the anime series began airing from January to April 2019.

A spin-off manga series titled REIGEN was serialized in the MangaONE mobile app from March 19, 2018 to February 19, 2019.

Shigeo Kageyama is an average middle school boy, nicknamed Mob (モブ Mobu, lit. “background character”) for lacking a sense of presence. Although he looks like an inconspicuous person, he is in fact a powerful esper with immense psychic power. To keep from losing control of this power, he constantly lives a life under an emotional shackle. In order to help learn how to control his abilities, Mob works as an assistant to con-man Reigen Arataka, a self-proclaimed psychic. Mob wants to live a normal life just like those around him, but a barrage of trouble keeps coming after him. With his suppressed emotions growing inside Mob little by little, his power threatens to break through its limits as he eventually encounters other Espers.

The protagonist, Mob is an eighth grade Esper with powerful psychic abilities. His bowl-cut hairstyle is his defining physical feature. He is not good at reading the atmosphere, and since childhood, has rarely felt or displayed intense emotion. He thinks his power is unnecessary in his life, so he avoids using it. He suppresses his emotions to keep his power in control, but when the percentage of his accumulated feelings reaches 100, he is overcome by the strongest emotion he is feeling at the time and unleashes the full extent of his powers. He works at Reigen’s spirit counsel for 300 yen an hour. After being begged to join the Telepathy Club to prevent their dissolution, he instead chose to join the Body Improvement Club hoping not only to impress his secret love, Tsubomi, but also to improve himself as a person. He is credited as Salt Middle School’s urabanchō (裏番長 is roughly translated as “secret school gang leader”) known as White T Poison but this remains unknown to many including himself. Mob also possesses an unknown power which far surpasses even the height of his abilities, but is uncontrollable and only awakens when unconscious.