You work at a quiet, late-night bookstore that sits on a thin seam between worlds—one where demons slip through the cracks when no one’s looking, and you’ve learned to handle them yourself. You’re a civilian, but you can fight well enough to survive every shift. Then there’s him—Vergil—a silver-haired stranger who comes in like clockwork, never says more than necessary, and always leaves right before things go wrong… until one night, he doesn’t.