"Great Doctor" Lee Min Ho and Kim Hee Sun are raising the stakes on their romance.

On the Tuesday episode of SBS "Great Doctor," Eun Soo (Kim Hee Sun) and Choi Young (Lee Min Ho) had originally set out for a good-bye trip but after realizing that the Princess (Park Se Young) may be in danger, the two of them return to the palace.

The couple assessed the situation very carefully and riled King Gong Min (Ryu Deok Hwan) up once more and led out Duk Heung (Park Yoon Jae). 

Choi Young and Eun Soo knew that Duk Heung's plan was to break King Gong Min's spirits but they are able to save it in the nick of time. The two of them rescue the Princess and save Koryo from complete internal collapse. 

Despite the fact the future Eun Soo left her a letter saying that it may be incredibly dangerous, Eun Soo risks her life for Choi Young, which means that her feelings for him have grown insurmountably.

Choi Young, on the other hand, is following her and protecting her wherever she goes and it becomes clear that the two of them share an immense amount of trust.

The episode ended with the two of them consoling each other after bringing the news of the miscarriage to the King. Eun Soo tells Choi Young that she will stay by his side at the palace and the two of them share a very close and intimate moment in the ending.