I quite liked this kdrama at first however I felt there were a lot of things missing and a couple plot holes. I also felt like there was so much wasted potential for the relationship of Gong Hye-won and Do Jung-woo that could've been so good, also I felt like the ending definitely left me slightly dissatisfied as Jung-woo really didn't have to lock himself in there in the first place, completely necessary. I did like the characters though and all the parts they played, I just felt like this kdrama definitely could've done with a complete ending as I think it's clear that there won't be a season 2 of this.