On Your Wedding Day is a south korean romantic comedy
film that depicts the ten-year love and friendship of two people from teenage to adulthood. It was written and directed by Lee Seok-geun.
A man receives a wedding invitation from his first love whom he met in high school. He reminisces all the trouble he went through to get together with her over the span of years beginning from youth, and how they had ups and downs in their life together. He finally goes to her wedding, and thanks her for being the shining star in his life and she thanks him for his support in need. He then walks away from her wedding function.