The premise of the show has KARA working for an underworld service as for-hires, but instead of killing their targets, their missions require them to make those men fall in love with them. Each week, a mysterious boss will give them their new target - from powerful politicians to kabuki actors to ordinary salarymen - and they will use any technique they can to accomplish their goal. But due to their inexperience with love, various problems come up during their missions.

The premise of the show has KARA working for an underworld service as for-hires, but instead of killing their targets, their missions require them to make those men fall in love with them. Each week, a mysterious boss will give them their new target - from powerful politicians to kabuki actors to ordinary salarymen - and they will use any technique they can to accomplish their goal. But due to their inexperience with love, various problems come up during their missions. [ Contract ]