Ouyang Chen was once a feared "Ghost Hand" in the underground world, but he was betrayed by a henchman during a mission. His central nervous system was damaged and his abilities declined rapidly. The former underworld overlord was reduced to a useless person, his fiancée broke his engagement in public, and his enemies came to his door one after another. Just when he was forced into a desperate situation, he accidentally obtained a mysterious black scale - it could temporarily enhance the brain's computing power, but at the cost of burning his lifespan. Ouyang Chen understood that every time he fought back, he was gambling with his life. Relying on his remaining ingenuity and the blessing of Black Scale, he managed to survive the encirclement and suppression by various forces, set up counterattacks, and gradually regained his position on the top. But the truth hidden behind this black scale is far more deadly than revenge.
