Tangtang, a modern medical student, traveled through the troubled times of ancient times and discovered that he was the key to connecting the two dimensions. The countdown of the Jupiter necklace, the star pattern of the mysterious boy Qi Yan, and the quantum entanglement of the twin sisters all point to a crisis that is about to destroy both worlds.
In order to save the modern doctor mother and the ancient noblewoman Yun Niang, Tangtang embarks on a journey to decipher the conspiracy of "Beichen AI". When the two moons share the same day, she uses "The Ballad of the Bronze Mirror" as a guide to weave a star bridge across dimensions with red rope, allowing the two civilizations to be reborn in the collision.
Ten years later, on the Mengbao Star Bridge, children from mixed civilizations are using star sand to create the future - and the red rope network deep in the universe has just lit up its first unfamiliar star...
