Lee Min Ho asks Kim Hee Sun whether she'll stay with him once he finds the antidote.

On the Monday episode of SBS's "Great Doctor," Choi Young (Lee Min Ho) asks Eun Soo (Kim Hee Sun) whether she'll stay behind with him, rather than go back home. 

Eun Soo (Kim Hee Sun) requested that she be reinstated as one of the King's soldiers and she was staying with Choi Young. However, one night, he asks her why she is staying in his room if she is ultimately going to go back into the sky.

Eun Soo tells him that it's because this is the safest place for her to be and Choi Young realized that she did everything for him. He takes her hands, draws close and begins to tell her what they are to do from then on.

Choi Young asks if she will stay with him once he heals her with the antidote, if he is to find it.

Eun Soo, shocked, is unable to say anything. He says that he knows someone is waiting for her in the sky but tells her that he will protect her forever and to stay with him.

Eun Soo says, "It's not going to be easy to protect me." He already knows this and says, "If I have a significant other, it's forever. Today and however many days to come."

He asks her if she will give him an answer when the time comes and she nods, smiling.

However, in the same episode, Ki Chul (Yoo Oh Sung) goes on a rampage, furious that he was tricked by Eun Soo.