In a fractured world where timelines have collided and Earth itself has broken apart, humanity survives among unstable dimensional zones known as Subspaces while monstrous Riftborn and cybernetic holy warriors terrorize what remains of civilization. Sixteen-year-old Ryuko Miriyami is an introverted transfer student from the American Subspace who secretly works as a famous online author. But every time he finishes writing a story, his body suffers injuries identical to those of his protagonists—as if he had personally lived through every battle and death he writes. Because somehow… he did. After transferring to Astraea Academy, Ryuko meets a strange orange-haired girl named Yuki O’Sullivan who speaks like a medieval knight and calls him by a name he has never heard before: “Sir Gallent.” Soon Ryuko is dragged into a hidden war involving dimensional collapses, mechanized Templars, and the mysterious grimoire bound to his soul known as the Paradox Codex—a living book that grants him