Subete wa Kimi ni Aeta kara

It All Began When I Met You is a 2013 Japanese film directed by Katsuhide Motoki, and released by Warner Bros. in Japan on 22 November 2013. Inspired by the 2003 British romantic comedy Love Actually, the film is made up of six separate stories revolving around ten people at Tokyo Station just before Christmas. It was produced to commemorate the 100th anniversary of Tokyo Station, and was filmed with full cooperation by the railway company JR East.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.