The Paper Money I Burned Gave Rise to the Fourth Industry of the Underworld

When the whole class was preparing for the college entrance examination, Zheng Qian, a senior high school student, received an "angel round financing plan" from the underworld. His grandfather Zheng Jianguo, the ghost emperor who was in rebellion, asked for five small targets of military spending, which he needed urgently. From then on, Zheng Qian became the only "cross-border supplier" in the underworld. Burning a copy of "Postpartum Care of Sows", the underworld gave birth to the "Hell's Warthog Cavalry" that swept the battlefield; burning a set of "Five-Year College Entrance Examination and Three-Year Simulation", it was regarded as a military bible by the genius strategist; when he tried to burn "Principles of Nuclear Fission"... The style of painting in the underworld has completely changed. The steam engine roars by the Wangchuan River, the Netherworld High-speed Railway made of Nietzsche alloy runs through Huangquan Road, the smartphone "Three Realms Link" is popular among ghost friends, and the food delivery platform "Are You Starving" directly delivers to Naihe Bridge. Zheng Qian used modern knowledge to ignite an industrial revolution that swept through the underworld. Grandpa's army has evolved from primitive ghost soldiers into an information-based army of Yin soldiers. It uses economic warfare, public opinion warfare, and even "Hades Fission Soul Bomb" to sweep away the corrupt forces of the underworld. However, Zheng Qian gradually discovered that behind this seemingly absurd "grandfather-grandson entrepreneurship", there was a horrifying truth hidden: Why did the reincarnation system collapse inexplicably? How can the burned knowledge be transformed perfectly? The local technology tree climbed to the top, and he saw the reflection of a cold metal wall from the embers of the explosion—— It turns out that their all-out struggle may just be a "civilization stress test" that has been scripted in the eyes of a higher being.