The literary story starts following real-life North Korean overall Jang Sung-taek's implementation. One day an order boils reactivating erstwhile spy Park Hye-rim who's spent years in South Korea. She is given the mission bring and to turn Kim Seonu, within her son. Cool-headed genius Seonu is an information analyst on North Korea working for the NIS. His girlfriend Yoon-jin is just really actually a tourguide for Chinese tourists who can't speak Chinese, if Seonu helped her interpret and so they fell in love. Hye-rim is unexpectedly forced to choose between country and her son, and risks her own life to see through that the choice.