Time Travel Beggar: at the Beginning, the Eldest Lady of the Prime Minister's Mansion Is Messing with Me

Shen Wuwei (chief designer of modern military industry) traveled through time and became an ancient beggar due to a laboratory explosion. He met three girls from the Song Dynasty (Song Ziqing, Song Yuruo, and Song Wanwan) who were offered marriage by the emperor. The Song Dynasty was wronged and four people were imprisoned. Shen Wuwei activated the quantum printer space and obtained modern weapons. After escaping from prison, they used technology to fight against the pursuers, built new cities, won the hearts of the people, and defeated villains such as Qin Shou and Lord Wang. Facing the army and masters sent by the emperor, Shen Wuwei relied on mechas, missiles, etc. To crush them, expose the emperor's crimes, and finally used a black hole hand cannon to eliminate the emperor, clean up corrupt officials, refuse to ascend the throne, first stabilize people's livelihood, and start a new deal with his three daughters.