Meanwhile, Kim Hang-ah (Ha Ji-won) is a North Korean Special Forces officer who is also the daughter of a high ranking North Korean military official. Both Jae-ha and Hang-ah meet at the joint military training, a crucial part in establishing friendly relations between the two separate countries. Although the two are initially antagonistic towards each other, Jae-ha unwittingly sparks a friendship with Hang-ah and he subsequently falls in love with her.