Set a century ahead, the world has embraced self‑driving, electrically powered AI cars that autonomously transport passengers to their desired destinations. In this near‑future society, the eX‑D organization prepares to recruit new talents, including Lisa and Lorna, who will join shortly after the events of this story. When one AI car suddenly goes rogue, its unexpected malfunction threatens the city’s safety. Nina and Rei, the primary drivers of eX‑D, must investigate the mystery behind the malfunctioning vehicle, uncovering a sinister plot and confronting traps that lie ahead.