Tokyo is gripped by fear after discovering the existence of demons among us. People are turning on each other, suspecting that anyone could be a demon in disguise. This paranoia and the darker aspects of humanity have erupted onto the streets. In the midst of this mounting tension, Akira suffers a tragedy that pushes him over the edge, causing his mind to snap. As he retreats into his subconscious, his malevolent alter ego, Amon, breaks free, causing chaos and destruction for both humans and demons.