In the tumultuous year 2059, Earth grapples with a relentless alien threat. Seeking answers, Dr. Noguchi and his team endeavor to awaken a Bio-Mechanical alien, Frank. Chaos ensues as Frank springs to life, destroying the lab and leaving Takuto as the lone survivor, while the alien vanishes. Venturing into the wild, Frank crosses paths with Hattie, a bereaved girl with a unique connection to the enigmatic creature. Together, they are apprehended by the covert 'Funeral' organization. Meanwhile, a disfigured Takuto emerges from a hospital bed, consumed by grief and a thirst for retribution. Embracing a new persona as Ryu Soma under the guidance of the mysterious 'Mr. X', he plunges into the shadowy world of Funeral as a formidable agent.