It's a good show. But the title doesn't really match. When I first saw it, I thought it was gonna be about a girl who made 4 guys fall in love with her and the series is about them trying to win her over.
I didn't like Hye-Ji because to me she seemed like an overly obsessed fan of Hyun-min, tbh if a guy you liked/loved rejected you and made your heart shatter into pieces I don't think you'd want to be anywhere near him anymore, like I know they made promises but they were still kids when they did that.
Seo-woo, was such an underrated character. I really liked his character, he was so sweet, thoughtful, talented, and just perfect but he didn't get enough screen time and moments with Ha-won. My heart broke everytime Ha-won indicated that he was just a friend to her and you can tell from his face that his heart was breaking and wanted her to be more than that.
I feel like Hyun-min and Hye-Ji's relationship was better off as best friends rather than lovers. but with all of that aside it's a pretty good show.