The first K-Drama I watched, and totally the best choice. The plot is simply amazing. The sad parts like... I won't spoil ;-P anyway, the sad parts will make you cry, and the funny parts in between are so hilarious that I cried because of laughing lol. And Joon Hyung's confession was sooo cute and the way Bok Joo was startled was seriously adorable and kawaii that I watched that episode 4-5 times ≥﹏≤. Furthermore, the characters' chemistry is undeniable and super brilliant. The main characters, Nam Joo Hyuk and Lee Sung Kyung were even dating but unfortunately broke up later prolly because their schedules kept them too busy and they didn't spend time together. Anyway I definitely recommend this K-Drama!! Worth every GB of mobile data (u probably use wifi lol) and every minute in each episode!!!