I usually don't like writting reviews, nevetheless it's story deserves it. The main point is about the relationship between the family of Mr.Shim like how they act in face of him chases his dreams after 70 years don't doing anything at all about it. Morover, the plot itself doesn't have a big evil or romance, just humans being humans, nobody is only evil nor all good, everyone make mistakes, the difference is what you do after that, to change yourself to be a better person and properly ask for forgiveness.
The young boy Chae-rok is so damn complex he has his flaws that made him perfect.
Just watch, I cried a lot, it really toched deep in my soul.