Hyun patiently waits for Eun Jae to open up to him, but Eun Jae is still confused by her feelings. Also, the presence of Hyun's ex-girlfriend becomes a variable in their game of love. Meanwhile, a patient with Vibrio vulnificus infection comes aboard.

Park Soo Bong, who is like a father figure to Jae Gul, is found collapsed on the floor. Although it's a simple surgery, Soo Bong is not able to go under anesthesia. Eun Jae wants to proceed with the surgery, but Hyun is hesitant.