In a mystical land where the sands glow with starlight, a young girl embarks on a quest to unravel the ancient legend of Muzhou, only to find herself entangled in a love that transcends time and space....

In a quaint coastal town shrouded in ancient mystery, a young prince discovers a time-traveling sand castle that leads him on a quest to restore his kingdom's legacy and save the heart of the world from eternal winter....