What a fun and enjoyable watch. While at first glance the series seem to be a cheap take on the old spy plot combined with a corporate corruption drama, the drama turned out to be quite enjoyable with the cast of unlikely trio of female agents with different backgrounds.

It's basically a Korean Charlie's Angels drama with two of the female agent being mothers. The spy plot may be a bit old-school and full of clichés but Choi Ganghee did pretty well in playing the part of a super agent with a painful past. The addition of Lee Jonghyuk as Team Leader Dong adds a bit of comedic element to the series which made it fun to see this unlikely team of NIS agents try to solve the case of corporate leak conspiracy.

While as a whole, the series did have a simple plot with some predictable twists... the drama did not fail to make me laugh with the comedic gags as well as its old school espionage plot.