just completed this drama and i must say that this was a really good and entertaining one! so ji sub was amazing as always... His relationship with the kids was soo cute!!! jung in sun portrayed her character really well and she's sooo damn beautiful.. joon-joon were the most adorable kids i have ever seen on screen and they acted soo well... the nose-nose thingy was soo cute! especially when so ji sub does it to jung in sun!! for the first time i wasn't bothered by the fact that there was no romance in this drama.. their friendship is a ship that will forever sail! the KIS was amazing too... the storyline kept me hooked from the beginning to the end! son ho jun was another remarkable character... the guy who played ra do woo is so handsome! the OST's were pretty good too... and that was a really good way to end a drama... i really wish we could have got an insight on the mission that was given to them in the end!
overall i'd rate this drama a 9/10... HIGHLY RECOMMENDED! WORTH THE WATCH!