The cable channel JTBC's Monday Tuesday drama "Secret Love Affair" Lee Sun Jae, played by Yoo Ah In, was invited to the house of Oh Hye Won, played by Kim Hee Ae, and Oh Hye Won's husband Kang Joon Hyung, played by Park Hyuk Kwon.

On the fourteenth episode of the cable channel JTBC's Monday Tuesday drama "Secret Love Affair" which aired on May 6, 2014, Oh Hye Won, Lee Sun Jae, and Kang Joon Hyung met together at Oh Hye Won and Kang Joon Hyung's house. The three had met together for an interview for the prestigious arts magazine. Oh Hye Won and Kang Joon Hyung tried hard to seem like a really affectionate couple during the interview, and their show went on to the after party after the interview, where Lee Suh Jae and the couple were greeted by a few of their colleagues from work and the university. Kang Joon Hyung, drunk, requested Lee Sun Jae to play the piano, and he played Twinkle Twinkle Little Star, which he had played with Oh Hye Won together. He played many variations of it, and surprised everybody at the after party. In related news, cable channel JTBC's drama titled "Secret Love Affair" is a story of a forty something woman, Oh Hye Won, who is played by actress Kim Hee Ae, and a naïve genius pianist Lee Sun Jae, played by actor Yoo Ah In.