Story - really good, I like this type of plot. Cast - played amazing, villains were so annoying and you for sure wished them anything bad possible - and it is a good thing, in the end they are character who we should hate (Remember - characters not actors). Lee Jong Suk was great, how sweet his character was at the beginning and then his change after all what happened, I love how he played. Spoiler - many people point out that Im Yoonah' characters death was unnecessary, it was sad but I think it was important for LJS's character development, it was his breaking point. But yes still sad, especially when they were a really cute couple.