I'm a little late to the K-drama scene.  I liked this show a lot.  First, before I forget, Park Seo Joon, who plays the male lead, looks uncanny like my late Japanese friend, Matsumoto-san.  Not at every angle and all facial expressions, but especially when he smiles.  First Japanese person I became friends with, an unbelievably kind guy whom I miss a lot.  I first saw Park in "Itaewon Class".  Seeing him made me happy and very sad at the same time.  I think we all knew the female lead, played by Hwang Jung Eum, even with the weird hair was going to turn out to be attractive.  Besides the physical part, her character being bubbly and sweet, is something that is a very attractive quality!

Star of the show has to go to Choi Si Won's character, Kim Shin Hyuk.  Hilarious and creative role that Choi was perfect for, makes me want to go find some other things he's been in. I hope there are some Korean guys in real life who are like that character, maybe not as crazy though with the pranks though, lol.  I like to joke around too, because I enjoy making people laugh and forget their problems.  Shin Dong Mi, who plays Cha Joo Young, is also an attractive lady and stood out, maybe because she was the only lady who had her natural hair color.  I know this drama is dated, but I hope Koreans, like Japanese and all Asians, STOP dying their hair color, natural always looks best!  I realize people in Asians countries tire of black hair, as almost all people tend to have it, unless they are seniors, but if everyone dyes their hair brown then people with natural locks stick out amongst the crowd, hah hah!