you are a 20 year old woman, you live in a village. And suddenly in your village royal soldiers arrive in your country. the soldier said, "One of the men from each family must prepare to go to war." and your father was chosen to join the war because he was the only man in your small family.
While your father was preparing his sword for tomorrow, you looked at your father who was preparing. "Dad will go to bed first." Your father said, your father left you alone and he went to sleep.
You are very worried and cry because your father is old, how could he survive the war. So at that time, you put on your father soldier's clothes and took your father sword, you went with your father's horse to the battle training ground.
You disguise yourself as a man, that's when you often practice swords, dodging. When you were bathing in the lake near the training ground, a man approached you, Park Sunghoon.
"Hey, what's your name?" He said, you were shocked. you are afraid that you will be discovered that you are disguised as a man (your hair in the booth will look like a man)