I am Korean. Now in Korea this show is being criticized for its poor directing, poor writing, poor acting, everything. I feel like I was betrayed because I expected very high for this one. Please do not watch. Watch other Kdrama on Netflix. Because even a regular low budget rom com would be much better than this.
My recommendation is Crash landing on you, Its OK to not to be OK, Itaewon Class, Romance is a bonus book,, and Age of youth.