That I stuck this Drama out for all 72 eps (with MUCH ff, of course) is testament to the fact that it kept surprising me by avoiding clichés in many setups throughout the Drama. Sadly, it fell into one of the worst of them at about the 60 episode mark. Noble idiocy rears it tired, ugly head, and we have to endure the male lead having a personality transplant/brain removal before it's fixed just in time. So the kindest thing I can say about this one is, I liked the leads, and the execution was better than expected in many places. I've definitely seen worse. It was also a bit jarring to see the cute youngest sister and keep thinking about what happened to the actor who played her. Very sad.