Book excerpt: Inadvertently run away from home, so that Yang Tianming can enter another world. In this world, the weak and the strong are respected. When Yang Tianming knows that this world is a world that can be cultivated, he enters the school to practice. Yang Tianming believes that when he reaches a certain strength, he can return to the earth. Yes, when he reaches a certain strength, he can return to the earth. The old man who brought him to the world then became Yang Tianming's teacher. The old man fought with the three world masters. The defeated body cut the boundaries of time and space to guide Yang Tianming to the world. The three World Masters are ghost, hell and devil.