Su Yun never imagined that in Tianmen Town, where he had lived for over a decade, he was the only human. He never expected that outside Tianmen Town, within a radius of hundreds of miles, lay a notorious no-man's-land. When the boy opened his eyes, the world he had imagined crumbled, and the reality of a world teeming with monsters and demons was presented before him. Walking by the Abyss. Walking along the precipice in the dark night requires one to be alert and cautious, treading on thin ice!