December 25, 2018 (edited) , KOに번역する (번역を見せる) , ENから번역されました (원본을 보여주는)
So, I have to say that Olivia Sin as the model for the bonus card is, to my mind, a pretty bold choice on Totem's part, or it shows that the team must have been much more convinced by her and by how the audience would respond to her than has been the case (merely 59% yes votes in the casting (compared to many other higher scores), 3.76 on the first card, as two indicators of that).
On the one hand I appreciate that the card isn't entirely seasonal, as the christmas cards don't get a lot of playing time around the year; of all the models appearing in the calendar, though, with the exception of Mary Blonde, Olivia Sin is the one I was least excited about and least expecting to see as the model for the bonus show. Admittedly, I like her more now after two shows than after the casting pictures, but I still find it an odd choice (regardless of how you feel about toasting to the new year on Christmas Day...). Not exactly the end of the overall very enjoyable advent calendar I expected and hoped for (and I did not bet on any card, I think people were speculating on one or the other); will still look forward to how Number6's wallpapers will bring more magic to this card also!