Honestly i don't enjoy watching short drama, so there are only few short series that i find enjoyable.
And THIS IS ONE OF IT !
The drama centre about regret and friendship. Also about a women who got rejected by her bestfriend. First few episode, you will just hates the male lead. and rooting for the female lead to get new love interest. But over the time, you'll start to understand both party. That be it male lead or FL, both got their own thinking, emotion, and reasons for doing what they are doing.

Overall. the drama is good.. and i believe if they turn it to longer series also will be good. The cast and acting is super good too. Will surely rewatch this in future.