Li Wei, an ordinary librarian, mysteriously transmigrates to the Ming Dynasty during a stormy night at the library and becomes a beloved young lady from a wealthy family. Desperate to get home, she searches for clues in the family library, where she meets the mysterious Zhao Jin. He hints that the fate of this world is closely tied to hers.
Together, they explore ancient texts, trying to unravel the secret of the doorway through time and space. But their relatives on a collateral branch of the family covet the family fortune and secretly sabotage them. Another mysterious force is also searching for the doorway through time and space, constantly disrupting their plans. Using their wits, Li Wei and Zhao Jin solve one puzzle after another, each connected to history and culture.
By chance, they finally discover a key clue to the doorway through time and space. On a night when the stars align in a special formation, they arrive at an ancient altar. After completing the ritual, they are sucked into a bright light, and Li Wei finds herself back in the modern world.
Back in the modern world, Li Wei is no longer the ordinary girl she once was. Her soul bears the mark of this adventure, the genuine bonds she formed, and the growth she experienced. She has become a true traveler through time and space.
