Shizen

Kaizen Ryou Aizawa was supposed to be dead. Shot through the head on a rain-soaked street, his story should have ended there. Instead, he wakes up six years in the past—alive, untouched, and trapped in a world that has forgotten his death. Memories of murder, betrayal, and a masked killer with glowing red eyes haunt him like unfinished sentences. His friends are alive. His future hasn’t happened. But Kaizen knows one terrifying truth: The killer still exists. As fragments of his past life begin to resurface, Kaizen discovers a power tied to death itself—a silent dimension of absolute nothingness where time does not flow, and reality bends to his will. A place only he can enter. A place that remembers everything. Determined not to repeat the same tragedy, Kaizen chooses a different path. Not revenge, Not escape. Protection. He will stay close to the people who once died. He will change their fates. And he will uncover the reason behind the killings—before the paradox corrects itself. But the more Kaizen interferes, the louder the world pushes back. Because some deaths were never meant to be avoided. And some memories refuse to stay buried. Shizen is a dark supernatural thriller blending time rewind, multiverse fracture, psychological tension, and sharp moments of humor—where survival isn’t about strength alone, but about remembering who you were when the world tried to erase you. When time breaks… only he remembers.