On the KBS 2TV Monday Tuesday drama "Good Doctor," aired on October 7, 2013, Shi On (Joo Won) and Yun Seo (Moon Chae Won), whose relationship had developed from hospital colleagues to lovers, announced that they are dating at dinner with pediatrician colleagues.

Yun Seo, who had decided to announce her relationship with Shi On, drew everyone's attention at dinner. Yun Seo, who picked up a spoon as a microphone and stood up in front of her colleagues, said, "I am dating that man." The colleagues, who had clapped their hands at the news that she's not a single anymore, showed mixed feelings when found out that she is dating Park Shi On.None of the colleagues believed she's dating Park Shi On until Shi On confirmed the dating.

Shi On, flustered, accidentally hears, "Cha Yun Seo's been acting so condescending, I can't believe she's only dating that guy!" Do Han consoled Shi On saying, "Don't act like a kid. Be three times stronger than you are now so you can love and take care of her."