Haru Kyouko , a sixteen year old, enrolls a all-boys-school just to meet Zuko Izumi and make him do the thing he loves the most... high jumping. But while doing that Haru has to watch out for many guys in the dorm that are always on the edge of discovering a complicated fact about Haru... The fact that Haru is a girl. But while helping Zuko she notices that she even has to face a lot more difficulties than only her gender...

Poor but academically excellent, Cha Eun Sang is granted a schoalrship at the country's most prestigious highschool: Jeguk High School. Jeguk High has a class system pretty much like the caste system only there are just two extremes: filthy rich to dirt poor. She belongs to the latter. Rebellious heir Choi Young Do does everything in his power to rid Jeguk High of poor students. Cha Eun Sang collides head to head with him on her very first week at Jeguk High. In such a short period of time, there is already too much bad blood between them. Will they be able to tolerate each other's presence? Who knows, life may surprise them.