The soul traveled through the Wude period of the late Sui Dynasty and early Tang Dynasty, and became the foolish son of the Cheng Yaojin family, bound to the system. The system asked him to steal the princess's things. The thing was stolen, but the life was almost lost. In order to survive, he sneaked into the princess's mansion and worked as an aide, memorizing military documents, presenting firearms, and fighting against the prince. He relied on modern knowledge and system rewards to counterattack all the way. Relaxed and funny + power struggle + emotional line, the way the princess looked at him changed from "I'll chop you off sooner or later" to "You dare to run away".
