Jessica is a girl, the older child of her honored family. When the Japanese invaded South Korea, one man from every family is called to defend the country. Jessica's father, who lost his brother in the war, decides to fight for his country and the honor of his family and his deceased brother though he knows he risks his life. Jessica, who just got rejected by the matchmaker because she's a lesbian, decides to prove that she is worth something and steals away to fit her father's place in the Korean army.