I came across this drama when I was randomly listening to Korean drama OSTs. From the first episode till the last one, everything was well written. The main leads were awesome but the only thing was maybe they should have coupled up a bit earlier. I found it a bit frustrating that the ML was playing too hard to get. He knows the FL is pursuing him but he still acted like he only cares about his crush. And I must say this, I really love the grandpa. He really played his role well and the love he has for the ML is unconditional. Luckily, this drama has no female or male villain. Every character learned their mistakes at the end of the episode.