After the first kiss of Ha Yeon Soo and Yeo Jin Goo on tvN sitcom "Potato Star 2013QR3" aired on October 15, 2013, Ha Yeon Soo shared the behind story with tvN's enews on October 18.

On the October 15 episode of "Potato Star," the news came out that a planet 2013QR3 is going to collide with the earth, providing a turning point for the characters. The episode captured the ways each character dealt with this apocalyptic scenario, in which, for Ha Yeon Soo and Yeo Jin Goo's characters, ended up having a first kiss.

On enews yesterday, an episode on "Potato Star Behind Story" revealed all the behind stories of filming the first kiss scene. When hearing that this kiss on drama is supposedly Yeo Jin Goo's first kiss in life, Ha Yeon Soo said, "Only he knows if it was his first or not. If it was his first, I'm honestly a bit sorry."

"Potato Star" is a sitcom on the Roh family with the premise of a mysterious "potato star" that comes to the earth. It airs every Monday and Tuesday on tvN.