Eun-joo goes from her house"Il Mare", leaving behind a xmas card for the ultimate new owner of your home in 1999. In it she asks him/her to forward any email of hers for her new address in the town. It is 1997 and Sung-hyun, the very first owner of"Il Mare" is moving and discovers in his mailbox that the xmas card in Eun-joo. Sung-hyun reminds her its 1997 maybe not 1999 and leaves her a letter telling her . Finally the two understand they are split by a couple of years of period but can communicate throughout the mailbox and begin to develop a friendship during their own letters.