Chen Xuan accidentally opened the time and space gate and traveled to the Kaiyuan period of the Tang Dynasty. He originally wanted to make a fortune by reselling in the two worlds, but he was involved in the mysterious world of the Tang Dynasty. With the Tang sword in his left hand and modern technology in his right hand, he vowed to cut off the mysterious heroine Hu's cherry, stir up chaos in the court, and build his own business empire. But is Tanggui a good place? Fighting with martial arts beasts and power plots, every step Chen Xuan takes is surrounded by danger...