I think the intent with this show was to repeat the success of (the phenomenal)"Another Oh Haeyoung". The script has many underlying similarities, the director & the production company are the same, many of the cast members appear in both. It feels that they really had the recipe for success. Unfortunately the writing really flopped in this one. I'm of the minority that really liked the first 4 episodes. It was unique, a bit dark, but still funny enough, I was fine with the pushy, revenge hungry main FL. Then they took a week off for rewrites & in episode 6 they made major adjustments to everything, they gave actress Park Hyesoo a total makeover both in looks and personality and they tried to change the tone of the entire show, to make it fundamentally different. Following that over the course of the show there were many times when I felt that the writer made adjustments to a character's back story, or personality. Essentially there was no organic character development, but rather experimenting with throwing stuff at the wall, trying to see what sticks. The entire show only had one minor plot twist and I did not like it very much either.

Despite the bad writing it's still a good show. I loved almost all the acting performances, the main pair and the supporting cast were awesome.(especially Yun Jung) The cinematography is truly excellent, the cinematographer is probably the same as in Oh Haeyoung. The OST is very good too, especially in the earlier episodes. If I look at MyDramalist ratings I feel that there are many shows in the 8.2-8.4 range that are significantly less fun than this one, that's why I gave it 8.5 stars.