The most cruel thing in this world is the human heart, and the darkest thing is also the human heart.
The sun pours down, and the mark of the passage of time is the layers of decaying bones behind it. Behind the cozy town is the depravity and erosion of human nature. The cruelest thing is not death but human nature, and the darkest thing is not corruption but the human heart. When darkness falls on the earth, everything is no longer covered, and there is an invisible hand controlling everything...