It's the story of a crown prince who falls in love with a women who his best friend is also in love with. What you will love about the show is the acting particularly of the crown prince. It's the cast that stands out in this series. The plot is filled with twists and turns so it will keep you hooked till the end. But what makes this show memorable is the love and friendship between the 3 characters. Unlike other shows where you cannot understand the perspectives of the leads. Here, it helps you understand the reasons of the 3 people. Kind of you will go into their perspectives. So you will not have the usual second lead syndrome because you will love both the male leads and want both of the leads to end up with the same women
So why this show is underrated? Because it will break your heart. Those who watched the show will agree that it's a tragedy.
Another thing is that the friendship between the 3 main characters is so good that it will undermine the romance. Don't worry romance is the there. But you will not feel that spark between the chosen leads. If you come to prefer the second lead. And most of us do.
Lastly, I would say if you love moon lovers you will love this show. It's completely different but it will give you the same feelings. Since I had watched that tragedy I have realised that my heart is made of glass. I couldn't finish it after reading the reviews that spolied the ending. Thankfully they spoiled it otherwise I would have ended up with a wonded heart too.
So should you watch it? Definitely if you can handle tragic endings. Because it is worth it. Also, no other show you have watched intrests you & you wre bored. You can watch this because it will pull your interest back into kdramas. In the end, I would say it's a story of 3 people who cared for each other. If you like such stories you can go for it.