Ten years after the fateful confrontation between the original Kira and the legendary detective L, the world faces a terrifying resurgence of chaos when cyber-terrorism strikes. Six Death Notes fall into the human world simultaneously, the maximum number allowed to exist at one time under Shinigami law. This sparks a deadly global race for supreme power.A specialized Kira task force, led by Tsukuru Mishima, works tirelessly to contain the threat alongside Ryuzaki, the eccentric biological successor to L. Standing against them is Yuki Shien, a brilliant cyber-terrorist and devout worshipper of the original Kira, Light Yagami. Shien seeks to gather all six notebooks to resurrect his idol and complete the grand utopia Light envisioned. Meanwhile, a reckless police investigator named Sakura Aoi falls victim to the supernatural terror when she impulsively begins executing criminals with a notebook, only to be ruthlessly manipulated and discarded by an unseen mastermind.As
the investigation deepens, dramatic betrayals and shocking revelations shatter the fragile alliances within the task force. A major security breach at a high-profile international summit leads to mass casualties orchestrated by Shien, forcing Ryuzaki and Mishima into a desperate psychological chess match. Ryuzaki reveals that he is
running out of time due to his own terminal health issues, driving his reckless determination to solve the case before his body fails. The tension culminates when Mishima is captured by Shien, revealing a stunning twist: Mishima is not just an investigator, but the true heir chosen to possess Light Yagami’s memories and ideals, having consumed a fragment of the original Kira's legacy.In a tense, high-stakes final confrontation at an abandoned warehouse, Ryuzaki confronts Mishima and Shien. A fierce shootout ensues, resulting in the tragic deaths of both Shien and Ryuzaki, who sacrifices his life to ensure the threat is permanently neutralized. In the aftermath, the remaining Death Notes are seemingly accounted for, but the harrowing ordeal leaves a permanent scar on society, proving that human greed and the seductive allure of absolute power will forever tempt mankind. Mishima is left carrying the heavy burden of the Kira legacy in secret, forever trapped in a morally ambiguous gray zone. The fragile peace achieved at such a staggering cost hangs by a thread, serving as a chilling reminder that the terrifying shadow of the Death Note can never truly be erased from the mortal realm.