A young man who survived a disaster in which his whole family was wiped out was rescued by an eminent monk and became indifferent, but he had to enter the world of vendetta. His childhood sweetheart is actually the one who was sent to monitor him since childhood. Should he love or hate him? The benevolence and morality he has believed in since childhood are like a shackle, preventing him from taking a step forward. But when the shackles are broken, where should he go? In the end, he became a demon with one thought, but what did he shed those tears foreshadowing? Gods shed tears, they pity the world, and they sigh because the world is struggling in the sea of suffering in the mortal world without relief, while the devil, his tears are painful because of the pain of the world, and grieve because of the sorrow of the world, and he suffers with the world. When God chooses to stand idly by, the devil can only kill to stop killing. . . . .