OMG !! This show was everything I hoped for -- So Ji Sub.. the elite spy being helpless in the face of adorable teeny kids & ahjumma spy network! Hahaha! I lurved the ahjumma spy network & how they invariably AND inadvertently got info faster than the real spies! :D
I only wish the actual spy story side of the show had a stronger plotline.. cuz when Go Ae Rin or KIS or the Joon-Joon twins werent in the scenes.. it got really boring really fast.
My recommendation would be to fall in love & enjoy the first 20-22 episodes & then sort of zoom through the last few spy-heavy episodes for completion sake! :)