Ai Yori Aoshi: Enishi - Beautiful Snow (2003)

Long before the days of Ai Yori Aoshi when Kaoru is a new student in college, it's Christmas time and who should pay him a visit but Santa, looking very much like Aoi. They eat a Christmas meal, spend time at an amusement park, go skating and take a late night walk, occasionally crossing the path of other girls from the original series in humorous moments.