On October 8th, in the 17th episode of SBS Monday-Tuesday drama 'Great Doctor', Choi Young (played by Lee Min Ho) goes to see Eun Su (played by Kim Hee Sun) when he heard the news that she was getting married to Deok Heung Gun.
Choi Young appeared in front of Eun Su, Deok Heung Gun, and Ki Chul (played by Yoo Oh Sung) and asked them, "What are you doing?" Ki Chul responded, "What are you doing here on this joyous occasion?" as he used his ice powers on Choi Young.
Choi Young used his electric powers to fight with Ki Chul. Eun Su told Choi Young that he needed to go to King Gong Min (played by Ryu Deok Hwan) so Choi Young said, "I know. That's why I have no time. You leave me no choice." He proceeded to kiss her and shocked everyone else.
During this episode, Choi Young admitted his feelings for Eun Su and hugged her.