I Work as a Quality Inspector in the Demon Society Bureau

On the day he was laid off, Gu Yan stared at his boss's mouth and saw a line of words: [Paper concentration 99% | Credit 0.5%]. He blurted out: "Mr. Wang, this cake of yours failed the quality inspection." The night when the doctor of materials science lost his job, he awakened to the "Ingredient List of All Things" - everything in the world can be tested. The Thousand Years of Taoism preached by the Demon King is like seven hundred years of water; the contract between the black-hearted demon enterprise is like Yin and Yang; the cake drawn by the boss is all composed of air. I wanted to lie down, but I was specially hired by the Demon Society Bureau to join the Quality Inspection Department. Arrears in salary arrears for Yaoli? Dismantle. Sweatshop? Even the pot ends. Until he opened an old file and discovered that the "optimized" truth and Master Jiu, who was shocked by the demon world, all pointed to the same secret. Gu Yan closed the file: "Okay, let's start from the first piece of cake to the last layer of shady things." Because of the special nature of the protagonist's life experience, Gu Yan will also grow in combat power later on...