College student Li Yuan unexpectedly time-traveled to the late Eastern Han dynasty, becoming a minor registrar under Cao Cao. Intending to slack off peacefully and get off work on time, he instead disrupted the Three Kingdoms with a venomous tongue and modern thinking, tricking bandits, rescuing refugees, fleecing aristocratic families, training strong troops, and inexplicably becoming Xiahou Dun's virtuous nephew and Dian Wei's long-term meal ticket. Watching Cao Cao get so angry again that he drew his sword, Li Yuan just wanted to ask: When on earth can this damn shift ever end?