Mandrill, a scientist from the future, was reborn on the battlefield of the Qin Dynasty in an experimental accident, wearing armor and mastering future technology. He was mistaken for a general and quickly became a legend among soldiers and generals alike. However, this ancient world is full of intrigues, wars and betrayals, where modern technology is both powerful and dangerous. Faced with the enemy's pressing steps and the court's conspiracy, Xiao Feng realized that the key to changing history lies not in technology, but in people's hearts. In this era of swords and swords, can he use the limited technology at his hand to change the destiny of himself and this era? As more powerful enemies appear, a battle across time and space is about to begin.