Eun-joo goes out of her house"Il Mare", leaving a Christmas card for the eventual new owner of the house at 1999. Init she asks him to any email of hers to her new address inside the town. It's 1997 and Sung-hyun, the first owner of"Il Mare" is moving and finds in his mailbox the Christmas card from Eun-joo. Thinking this was a joke,'' Sung-hyun leaves her a letter telling her so and reminds her that its 1997 maybe not 1999. The two understand that they are separated by two years of time but can convey through the mailbox and begin to form a friendship.