This show will make you laugh out loud and make you cry. The characters are wonderfully written and portrayed by the actors. The romance was just lovely - he liked her first (I love when that happens!) and their relationship developed from friendship. This was a realistic portrayal of a developing relationship. They talked to each other, spent time together, etc. His romantic gestures were in the way he took care of her. He is the kind of boyfriend every girl dreams of, just wonderful in every way. I also loved the stories of the friendships between Bok Joo and the fatties, between the male lead and his friend and the development of the relationships between the two groups. Even the obligatory evil ex-girlfriend was well fleshed-out and you really understood why she behaved the way she did.

I was impressed by Lee Sung Kyung as Kim Bok-Joo. She portrayed the character in a way that, even though she physically didn't change much from the beginning of the show to the end, as you watched her she became so much more attractive. That to me showed that our actions help determine how attractive we are. She was a stalwart friend and how she behaved with her friends, and ultimately Jung Joon, was always supportive and positive.

The biggest surprise for me in this show was Nam Joo Hyuk as Jung Joon. I have seen him in supporting roles in a couple of things and was questioning his ability to tackle a leading role. I needn't have worried. He brought such heart to the role of Jung Joon. At the beginning he seemed like he was very immature and heading toward being a bully toward Kim Bok-Joo. He was able to walk that razor-thin line between meanness and playfulness successfully. He was strong, but when he showed his sadness and vulnerability it just about gutted me!

Wonderful ending. And cameos by Ji Soo and Lee Jong Suk were a bonus.