A strange basket appears in front of Myoyeongak. Inside it is a living, breathing baby with "7 red moles" on her forehead. Although both brothers secretly attempt to place the basket on someone else's doorstep, they return to find it sitting right where it was found?! Meanwhile, red-white mask steals from Gyeongseong’s gold mining royalties in search of the "golden ruler" that revives the dead.

Inside Myoyeongak, detectives, who're here for baby, are confronting Lee Yeon and Lee Rang. A scuffle breaks out, while Mi-ho innocently smiles within the bubbles. Meanwhile, Hong-joo arrives in Manchuria where she finds "Lee Yeon in 1938" drunk on opium. Lee Yeon calls for "Ah-eum," to which her face turns cold. Just as she turns to leave, Lee Yeon from 1938 calls out and hugs her from behind...!

In a room filled with opium smoke, Lee Yeon from 1938 starts after reading a letter. Yeo-hee and Jae-yoo got kidnapped last night. Lee Yeon meets the Chief Commissioner who proposes an exchange deal. Akira informs Hong-joo and Lee Rang that the one hostage who gets to live depends on them. The air is tense as Lee Rang's eyes shake at Hong-joo's words. That's when Lee Yeon bursts into the room...