The Tale of Nokdu S01E02 - Widow Village

Nok Du disguises as a woman and enters the village where only widows are allowed to live. Fortunately, no one is suspicious of Nok Du yet. He finds out that there's a gisaeng house right next to the widow village. When Nok Du finally finds the female assassin that he has been looking for, a group of widows takes him somewhere.