Kim Hee Sun plans on starting a business by making make-up and toothpaste.

On the Monday episode of "Great Doctor," Eun Soo (Kim Hee Sun) hands out the toothpaste that she made to some of the soldiers. She made toothpaste from bamboo and gave it to the soldiers, who brushed their teeth with twigs. 

Eun Soo, who is apparently trying her best to adjust to life in Koryo, even set about creating make-up. She asked the females around her what they use for make-up and what they do to take care of their skin. As the make-up that she had brought with her started to run low, she needed to adjust to what they had. 

Eun Soo goes out on the town to look for ingredients to create make-up with. She rattled off words like Vitamin C, which seemed like a foreign language to the merchants on the street. 

She explains this to Choi Young (Lee Min Ho) and says, "I'm going to make soap and make-up. If I hand it out for free at the beginning, they'll come back for it and want more even at a price. I will then sell it for a fee."

She continues, "If I sell it to the rich ladies of Koryo, I think I'll be rich! I even thought of the pyramid method which we use where I come from. " Viewers laughed at her sudden energy and excitement at the idea of making money.