Discover the untold story behind Reigen Arataka, the supreme psychic of the 21st century, as he reveals the truth behind his most awe-inspiring supernatural achievements. With his acclaimed storytelling skills, the globally recognized psychic recounts his adventures in the retelling of the events showcased in Mob Psycho 100. Catch the unveiling of his tell-all book exclusively presented during the OVA screening at Chiba's Maihama Amphitheater on March 18, 2018.