Su Wan is a cultural relic restorer at the Palace Museum. Because of a mysterious sapphire pendant, he traveled back to the Qing Dynasty and developed a fate that spans time and space with his fourth brother Yinzhen (the reincarnated Zhou Zhen). In the story, she not only restores cultural relics, but also shoulders the important task of restoring history. She becomes a member of the Space-Time Management Bureau and works with Zhou Zhen to protect the correct trajectory of history.
