Qing Lin is the least favored of the Tianyuan Dynasty’s seven princes. Frail and sickly from birth, he has been told by the imperial physicians that he will not live past twenty. Yet no one knows that this consumptive young man, who coughs blood every day, harbors a burning ambition to conquer the world and rule all under heaven. One day, a strange “Complaining System” suddenly binds to him. It won’t give him miraculous martial arts manuals or cure his illness. Its only ability is to gripe incessantly about everything around him, from the hypocrisy of court officials to the stupidity of his enemies, while tossing in a few irreverent, sharp-tongued suggestions. At first, Qing Lin is so furious he coughs up blood. But little by little, he starts to hear a way out in the System’s mockery. Meanwhile, Mo Li, the dynasty’s foremost genius inventor, bursts onto the scene. His astonishing mechanical weapons are meant to help him install a puppet emperor and control the government. Thus begins the clash between an ambitious invalid and a mad inventor. Qing Lin will wield the System’s complaints as a blade, lay out a scheme to seize power despite his frail body, and set out on the path to becoming emperor.