In that old house in the small town, Old Man Ellie's ordinary afternoon was filled with hidden troubles. She climbed up to the attic and came across an old wooden box covered in dust. What exactly is hidden in the box? When she opened it, a stack of yellowed letters revealed a story that had been buried in the dust of time. What kind of unknown past is hidden behind these letters? What kind of memories will Old Man Ellie retrieve from this?