What kind of story does the movie Love Photo tell?

Japanese young photographer Chengren (Song Tian RYU HAYABUSA Pingshi) suddenly received a letter from his divorced girlfriend Liu Jing (Ryoko Hirosue) in the United States, and her memories were immediately moved, but later she learned that Liu Jing died in new york many years ago. The lingering memories emerge: Honest Man and Still Flow met each other because of photography, and Still Flow became the heroine under his lens. A pair of lovers took a lot of sweet clips together, and sincere people will still miss her after breaking up. Because of all kinds of ideas, sincere people resolutely went to new york, looking for her footprints in new york with still photos, but slowly discovered the unexpected truth.