The movie stars revealed the reason for the movie's title, "It's the first time meeting with her, which makes it a special day thus the title 'One Day'." The actors also promised to dress up in costumes and take selfies with the audience at the movie theater on a bright sunny day as Kim Nam Gil added, "We'll surprise you all," making fans even more excited.

'One Day' revolves around the story of Kang Soo who loses his wife unexpectedly and meets Miso, changing his life around in this romantic fantasy-drama film.

Kim Nam Gil, who recently celebrated his birthday, mentioned, "I had dinner with family. Nothing too grand. I don't really think of it much as time goes by." Chun Woo Hee commented, "I had a really great time with everyone. Thank you so much."

'One Day' will be hitting theaters on April 5.

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