4 : Inside: Evil Spirit ✧ 【RELIABLE】

Reviewers on Dragon's Talk and Wooder On highlight several reasons for the episode's impact:

It forces Mob to question whether he can truly live a normal life without relying on his powers. 4 : Inside: Evil Spirit

Reigen’s ability to see through Minori’s "possession acts" before the real spirit is revealed showcases his mastery of human psychology. Mob Psycho 100 Season 2, Episode 4: Inside ~Evil Spirit Reviewers on Dragon's Talk and Wooder On highlight