Lin Xia is a time traveler who hides his identity. He has the ability to travel through time and space, but he is burdened with the irreversible "time and space curse". When she is accidentally involved in a murder case and discovers the existence of a parallel world, a huge conspiracy spanning time and space gradually emerges. In the desperate situation of confused memory and physical decay, Lin Xia must make a choice between saving herself and saving the world. Time will tell whether her sacrifice was worth it, and her story will forever be etched in the cracks of time and space.
