It's a love-hate relationship with this drama.

Love:
I loved the first 10 episodes — it was beautifully shot and absolutely adore Hyun Soo and Jung Sun's interactions. Their short-lived meet-cute moments were enjoyable and they were really connecting with each other. I love the acting performances from Seo Hyun Jin and Yang Se Jong in the first 10 too.

In the earlier episodes, it was understandable of Hyun Soo's choice—that she's too overwhelmed with everything bad that suddenly happened to her that she gave up on love. I felt the heartbreak for Jung Sun, but I thought that it was a necessary break-up since both aren't ready and were too young.

... it's what happened after 5 years later that ruin the love I had for this show...

Hate:
After episode 10+, I started to realise I can't understand all these characters' behaviour and actions anymore. It was much easier to understand Jung Sun's because he's the only one remain unchanged, but everyone else were out of character. I even tried to reason with myself that in real life, no woman would not be moved by Jung Woo, but then I thought there's really no need for us viewers to watch the woman hurt the man's heart the second time in a 20 episodes drama. And then there's the case of the writer contradicting herself by first telling us viewers Hyun Soo had always loved Jung Sun only to later have her confessed she does have some feelings for Jung Woo (confirmed in the published script). The last few episodes were particularly frustrating to watch because of Hyun Soo's treatment and confusing behaviour towards Jung Sun and Jung Woo.

It was hard to like Hyun Soo in the later episodes. She further disappoints the viewers when the story showed us a big contrast of how Jung Sun was selflessly happy for her success, but when he finally earned his, she couldn't be happy for him because she was too busy wallowing in what she can't get from Jung Sun in their (less than 3 months) relationship. She also selfishly (or naively) being ignorant that she's the main reason the two boys had a fall out and Jung Woo went rogue on Jung Sun.

I really don't want to get into Hong Ah and Jung Woo, but just let it be known that these two characters' behaviours are also beyond incomprehensible.

Conclusion:
Is it worth watching? Each to our own. This is a show that could swing either way — one will have to watch it to find out. Personally, I enjoy the instrumental OST and the casts' performance, but story wise I hope in the future no actor/actress I like would work with Writer Ha Myung Hee; she's a character assassin.

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