Katsumi's early days with the AMP counter-paranormal unit take a chaotic turn when a new supernatural threat emerges from the shadows of Tokyo. As the rookie operative struggles to understand her own latent powers and her place within the elite team, she finds herself caught between worlds: the ordinary city she once knew and a realm of impossible beings that most people will never believe exist. The investigation pulls her deeper into dangerous territory, forcing her to question everything about her recruitment and the true nature of the paranormal forces closing in around her. With seasoned AMP members by her side, Katsumi must learn to trust her instincts while uncovering secrets that could reshape her understanding of reality itself. This film bridges crucial gaps in the timeline, revealing how Katsumi became the driven investigator at the heart of AMP's operations. The blend of sci-fi intrigue and supernatural action intensifies as stakes rise and mysteries unravel, delivering payoffs for those invested in her origin story.