Shin Hye is a student at the DoolMyeong (insead of Dooley (“two Lee”) its “two people” for some reason) Academy. This school is a school for highly trained people who have the ability to be a spy. So, DoolMyeong Academy is an all-girls school for spies.

When Shin Hye is on a mission, a boy is watching her and is suspicious of her movements. When it is time to go back to the academy, the boy stalks her but Shin Hye knows that he is following her so she gives him the wrong route to her school and looses him.

The next day on the same routine/mission, the boy is there again. This time he isn’t dressed as a boy but a girl and nobody knows. Boy name: Yong Hwa. Girl name: Hwa Young (or Yong?), meaning eternal beauty and prosperity (hehe, real name. found on this website. was actually looking for this name XD). So Yong Hwa a.k.a. Hwa Young, crossdresses and goes into DoolMyeong Academy and learns that it is a spy school.

“She” meets Shin Hye, her sister, Bom, and her friend Seohyun there too.

(I wanted to make this different from the others. Because usually its ShinHye who crossdresses, like in Your Beautiful, so I wanted to have YongHwa crossdress.)