This drama is based on a popular web novel of the same name “Fluttering Warning”. It released on 31 October 2018.
Love Alert or Fluttering Warning is available on Viki
“Fluttering Warning” is a love story between a dermatologist named Cha Woo Hyun (Chun Jung Myung) and a famous actress named Yoon Yo Jung (Yoon Eun Hye). Despite being famous among women Cha Woo Hyun has no interest in dating anyone. On the other side Yoon Yo Jung stopped dating due to some rumors spread about her 15 years ago. For some reasons they both sign a contract between each other in which they would act as couple in front of others, but they end up falling for each other for real.
Teaser 1-4 link