Chen Ning, a doctor in the military industry, transformed into a good-for-nothing prince-in-law. He was treated coldly by the princess Zhao Wan on the wedding night and was ridiculed by the civil and military officials of the court in the morning. He was too lazy to act, so he took out the drawings on the spot, pointed out the fatal flaw of the Forbidden Army's divine machine campfire gun in a few words, and casually modified a repeating crossbow that shocked everyone's jaws. From then on, the court was in trouble - Prime Minister Li Chong regarded him as a stumbling block, but Wang Zhen, the commander of the Forbidden Army, regarded him as a confidant. While Chen Ning was pretending to be real with the princess, he was using modern technology to gain prestige and turned the decaying court upside down.
