The Exam That Opened the Gate

Yeonwoo shoved a dead scanner back into place and watched the screen insist he had no class. The crystal disagreed, and that mismatch became the first useful thing in his life. As a former programmer, he saw broken rules where other hunters saw fate. He learned to treat system bugs like doors, then built a way to walk through them without asking permission. His own power stayed invisible to every window and every test, which made him easy to dismiss and hard to stop. That worked until old anonymous pranks, a sealed corridor, and a girl who knew his habits too well all surfaced at once. Dohee keeps meeting him with a glare and a knife-ready smile, and she is the only person who notices when h...