She lives in the past. He lives in the future where she doesn't exist. At least, not anymore. Their meeting was a mistake, and are never meant to cross paths ever again. But Luhan is given a chance, because he's the victim of the accident of the Timekeeper. One chance, three things. A pen, an address, and one week to do the job. A pen to write letters to his love who's stuck in the past, an address to send his words to, a