For centuries, sixteen castles have acted as seals to otherworldly monster dimensions, preventing their horrors from spilling into reality. When these monsters escape, they manifest as natural disasters—earthquakes, plagues, massacres, and worse. To keep them at bay, elite warriors and raiders with supernatural abilities fight back each time a portal opens.
Fifteen castles have accepted the help of governments and organizations, except one—the Kanagawa Castle. The secretive Kanagawa family has always fought "their monsters" alone. But when they unexpectedly call for help, the world listens.
Among those chosen to document the event is Kaede, a nobody—an awkward, cowardly school journalist assigned to follow the powerful Sun Jia, a top-tier raider and his long-time crush. But when they enter Kanagawa’s portal, everything goes wrong.
Two doors open instead of one—an anomaly. Sun Jia and the team enter what appears to be the safer path. But inside, they face a nightmare beyond comprehension—the domain of Shiniyuku Shinigami, the Dying Death God.
Reality collapses. The raiders don’t just die—they feel their deaths transcending time, erased from existence before they can even react. Kaede, the weakest among them, experiences his own death differently—shorter, but far more agonizing. Shiniyuku, intrigued by his insignificance, spares him, mocking his cowardice.
Kaede wakes up two years later, the only survivor of the disaster. The world has changed—door hunting is now a global industry, and the Kanagawa family has become more powerful than ever. But something inside him has changed too. A power is growing, something unnatural.
Determined to uncover the truth behind Kanagawa, Akihiko’s true intentions, and the identity of the enigmatic Knight X, Kaede embarks on a journey—not as a hero, but as a man seeking redemption. But as he grows stronger, a terrifying truth emerges...
Kaede is no longer just a survivor.
He is becoming something else entirely.
Something that should never exist in reality.
