To be honest Korean shows have always been an escape zone , they're are light hearted and the storyline is pretty sober with great details over the little things.
However this very show had a complete opposite story , something that was not predictable yet it was relatable sharing the story which depicted the eccentric love out of dependability .
The fact that there were things which are not that natural in real life but you would rather ignore that. I would also say that the acting of the lead character kim- woo Bin is commendable . Every literal emotion especially in the last few episodes could be felt .
I don't usually write reviews but I felt that I should do for this one , cause for me it was a very random pick and while I was watching I realised that it was totally different from the basic idea of what Korean shows are. I would recommend you to watch only if you're looking for something more with a storyline yet emotional , with acting skills almost making your eyes wet.
Hopefully my review would help you ;))