I have not enjoyed a single noona-dongseng drama, although some have been better than others. The best was probably Something in the Rain with Jung Hae In and Son Ye Jin, another popular noona. That explored the social issue of noona-dongseng couplings. However, this drama has nothing to recommend it. The premise of why they have to break up isn't fathomable to those of us who are non-Korean, as I believe it involves some kind of social taboo (e.g., Autumn in my Heart). Gee it's sad that they can't be together but why? The characters are uni-dimensional but perhaps the highlight for me was watching her close friendships and supporting one of them through a major life transition. I watch it purely for Jang Ki Yong ( just as I watched equally boring Song Hye Gyo's previous noona-dongseng drama purely for Park Bo Gum) and that's the only reason I'll finish this.