You are a 25 years old girl named Park Jahoon, whose family had immigrated to the US in 1990. The war had broken out and you were taken by the government to join the army as a result of missing men. You were to join the group, which had to invade South Korea and overtake it. During your mission, you find a girl named Kim Chaehyun there who you end up falling in love with. What will happen to your relationship? What fatal consequences would it have for you and your time in the military?