Min Gi and Soo Hyun are now both officially part of NIS. Min Gi falls in love with Ji Woo, while unaware that Soo Hyun and Ji Woo were childhood lovers.

Soo Hyun travels to Bangkok, Thailand to get his revenge for the death of his mother. Ji Woo surprises him and joins him, which is complicating Soo Hyun's task a lot.