After her soccer team gets cut and denied of opportunity to try out for the male team, Song Sena makes it a mission to prove to her coach, and her ex-boyfriend that girls can play just as well as boys. Conviently, she finds out that her twin brother Mino --who's set to attend Illyria Academy after being expelled from her current school-- is ditching the country for a few months to play with his band in Japan, thus sprouting a brilliant plan in her mind. 

 All she has to do is pretend to be her brother, join Illyria's team-- which happens to be Cornwell's-- the school she's currently attending--rival team, play in the soccer match, and send Cornwell's team crying to their mommies. With enough skill, she would be able to prove once and for all to everyone that doubted her, that gender doesn't define you as a player. 

Along the way, Sena meets a group of boys that soon makes her feel like one of the guys.

And a couple of them even make her feel smitten.