Episode #1.1 - S1-E1
Continuity mistake: Ae-sin is reading a book whilst a peddler prepares a collection of broaches for her. When the peddler finishes saying "What do you think, my lady", Ae-sin's right hand can be seen touching the bottom of the right hand side page. When the shot cuts, her right hand is nearer towards the middle of the page. (01:10:05)