"Mood of the Day" is a 2016 South Korean romantic comedy film directed by Jo Kyu-jang.
The film follows the story of Kim Jae-hyun, a sports manager, and Bae Soo-jung, an advertising executive, who meet on a train to Busan. Despite their initial dislike for each other, they spend 24 hours together in the city, leading to unexpected romantic developments.
The two meet by chance when Soo-jung mistakes Jae-hyun for the regular train attendant and joins him in the booth to watch TV. Over time, a friendship develops between the two lonely individuals, eventually blossoming into a romance. However, their newfound happiness is tested when Jae-hyun makes a troubling discovery.
The film was praised for its light-hearted and romantic tone. It was released on January 14, 2016, and went on to become a moderate box office success in South Korea, attracting over 1 million admissions.