Jung Joon Young and Jung Yoo Mi couple ran a marathon without training.

On the episode of the MBC entertainment program "We Got Married Season 4," which aired in the afternoon of Saturday, December 21, 2013, Jung Joon Young and Jung Yoo Mi couple finally ran a marathon that they have been thinking about for about 10 weeks. On the day of the marathon, Jung Joon Young, after running for a minute, started walking. When Jung Yoo Mi said, "You should run more," Jung Joon Young said, "I can walk fast," making the audiences laugh.

Although the Jung Joon Young and Jung Yoo Mi couple failed to complete the marathon, they put more meaning into the fact that they participated in the marathon. Jung Yoo Mi said, "We are the best. I really appreciated how he had put so much effort into this." Jung Joon Young said, "I feel great. This is the end of the marathon!"