What is Best for Lady Eun-woo

Eun-woo returns to her home on Heuksan Island to keep Se-poong safe. Upon hearing about her departure, Se-poong heads to the island himself. However, Kang-il ends up there as well. Physician Gye heads to Hanyang with Man-bok to settle Se-poong’s problem. Meanwhile, Eun-woo is asked to attend to the wife of Interpreter Jung who has encountered an unknown illness.