In the present day, Mizorogi/Mephisto try to sway Komon and Nagi to his side through various manipulation and mind games, but failed an instead delivering psychological attack to his foes, including Nexus and a young boy. He would later kidnap Himeya's colleague as a leverage for the Ultraman as he was killed by Kutuura in the Land of Dead. Before he could absorb Nexus' light to empower himself, the Night Raiders attacked him and revived the Ultra to full power. Nexus and Mephisto fought in a heated battle that ended with both sides seemingly perish. Mizorogi survived but remain amnesiac and lost his ability to become Mephisto. After being arrested by TLT to dissect the secret of an Ultra's power, Mizorogi escaped the facility with his memories returned and was shot in the back by Memory Police member Misawa, who becomes the new Mephisto. Wanting to redeem himself, Mizorogi's willpower allows him to transform for one final time into the original Dark Mephisto and grabbed his clone for Nexus Junis Blue to finish him. In his dying breath, Mizorogi apologized to Nagi and reveal that the Unknown Hand is among their ranks.
