I f you're a romance story lover, you have gotta watch this movie: Tada, kimi wo aishiteru (2006).

The story is about a photographer called Makoto (Tamaki Hiroshi), who travels to New York during Christmas to look for his best friend, Shizuru (Miyazaki Aoi). The two first met when Makoto attended his university entrance ceremony. Due to his inferiority complex, Makoto tends to shy away from other people but Shizuru managed to make him open up to her. Because of their friendship, Shizuru also ended up taking an interest in photography and the two often went to a forest to take pictures. Shizuru wants nothing else but to be by Makoto's side so when he started liking another girl called Miyuki (Kuroki Meisa), Shizuru decided that she too will like Miyuki and becomes her friend. One day, Makoto asked Shizuru what present she'd like to receive for her birthday. Shizuru, who wanted to enter a photography competition, had an idea to take a picture of the two of them kissing in a forest. Makoto agreed to do this and the two kissed for the very first time. Ever since that day, however, Shizuru disappears from Makoto's life.

it is currently available in Crunchyroll.com

Go catch it. No worries, it's english subbed. Oh yah, bring some tissues.