The wonderful story of Li Jin, a female general from the Tang Dynasty who accidentally traveled to a modern city. Li Jin died for the savior on the battlefield, but accidentally woke up in the modern society a thousand years later and became an ordinary female college student. Facing an unfamiliar world, she gradually adapted to modern life with her extraordinary martial arts and wisdom, but she also made many jokes because of the conflict between ancient thinking and modern concepts. By chance, she met the cold but kind-hearted detective Gu Chen. The two supported each other through incidents and gradually fell in love. However, Li Jin could never let go of her concern for her motherland, and Gu Chen gradually discovered the secrets about her. With a relaxed and humorous tone, the novel shows the collision of ancient and modern cultures, explores the true meaning of identity, belonging and love, and how two people find each other's destination across the thousand-year gap in the intersection of time and space.