Episode 16

"Inside ~Evil Spirit~" is the sixteenth episode of the Mob Psycho 100 anime adaptation, and the fourth episode of the second season.

Synopsis
Reigen and Mob receive a new job. This time, their client is a wealthy man named Masashi Asagiri. 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 Rising Sun Spiritual Union president, Kirin Jodo. The job is apparently to exorcise the evil spirit that is apparently possessing his daughter, Minori.

Plot
Mob and Reigen are hired to do an exorcism for a rich man named Masashi Asagiri. Upon arriving, they see that he has hired many other psychics, including Banshoumaru Shinra and Kirin Jodo, the Sun Psychic Union leader. Asagiri described how his daughter, Minori, was possessed by an evil spirit, and he had been forced to lock her up. They do rock-paper-scissors to determine what order the psychics get to go in and see her in. Reigen wins and goes in to talk to Minori. It seems she is not possessed at all, leading many psychics to believe that Asagiri was abusing her. Still, Reigen notices inconsistencies in Minori's conversation with him, causing the spirit to reveal itself. Dimple recognizes the spirit as Keiji Mogami, a former psychic. While the psychics go in to exorcise the spirit one by one, Dimple explains who Mogami is, warning Mob and Reigen not to get involved. However, Mob tries to exorcise Mogami from Minori's body anyway. Eventually, Mob realizes that Mogami is rooted too deeply in Minori and decides to use an out-of-body experience to go inside Minori to chase the spirit out. Succeeding in leaving his body, Mogami attempts to possess Mob's body, but Dimple is already inhabiting it, allowing Mob to enter Minori's body while Mogami is distracted. Mogami explains to Mob how they are in a mental world, and he can bend it to his will. He demonstrates this by making Mob think he can damage him while there before taking away his powers and defeating Mob. Mogami explains that emotions fuel psychic powers and that negative emotions are stronger. He crafts the mental world into an exact copy of Mob's life, except that he has no powers, friends, or family.

Anime and Manga Differences

 * The introduction of Jodo's lackeys is omitted.
 * Masashi showing tapes of "normal" Minori is omitted.
 * The flashback with a possessed Minori killing a doctor is omitted.
 * Mogami's death occurred 25 years ago in the manga, while in the anime, it was 40 years ago.
 * The flashback with Mogami's live program and his suicide is omitted.
 * All of Matsuo's inner thoughts are omitted.
 * Dimple's thoughts about taking over Mob's body are omitted.