Sun Mi and Oh Gong spend a happy night together confirming their love for each other.
To save Sun Mi, Oh Gong sends her away somewhere. During this time, he summons the black dragon and makes plans to confront it.
However, upon discovering Oh Gong’s plan to die in her place, Sun Mi goes to Elder Soo Bo Ri. She solidifies her will to carry out the calling of Sam Jang bestowed by the Heavens.
Meanwhile, Ah Sa Nyeo, who wants to show her powers, joins forces with Kang Dae Sung. Together, they proceed with a ritual which wakens the black dragon…. Sun Mi goes to stop the black dragon and is at the threshold of death as Son Oh Gong rushes to rescue her!
Source: tving
English translation by Elise Min, Lee Seung Gi Forever