"Prime Minister And I" Lee Bum Soo hosted a surprise "100 Days Of Marriage" event for YoonA and touched her hearts.

On the episode of the KBS 2TV Monday Tuesday drama "Prime Minister And I" which aired on January 13, 2014, Prime Minister Kwon Yul, played by Lee Bum Soo, serenaded Nam Da Jung, played by YoonA, for the surprise "100 Days Of Marriage" event. On this day's episode, Kwon Yul reserved a nice restaurant and ate there together with Nam Da Jung. However, Kwon Yul's assistant Shim Sung Il, played by Lee Young Bum, had also reserved a serenade for Nam Da Jung at the same restaurant, and Kwon Yul had no choice but to sing a song for Nam Da Jung.

Kwon Yul on stage said, "I promised to my father in law when I got married that I will make sure Nam Da Jung does not cry because of me, let alone be happy with me. But she cried a lot. She is prettier when smiling. I will sing this song for my wife who laughed and cried a lot because of me."

Nam Da Jung, touched, felt Kwon Yul's love for her.

KBS 2TV Monday Tuesday drama "Prime Minister And I" is a romantic comedy of the Prime Minister Kwon Yul, played by Lee Bum Soo, and a twenty something lady Nam Da Jung, played by YoonA of Girls' Generation.