Last Christmas

Haruki Kenji is the manager of the Winter Sports section of a large sporting goods company. On a ski trip in New Zealand with his friend Shintani Goro (who is also his boss) and Shintani's new secretary, Aoi Yuki. Upon returning to Japan he finds that he has a new neighbor in the apartment next to his. It is Aoi. While watching the movers he sees a photograph drop from new girl's luggage. (mydramalist.com)