Top Class Secret

Yukito Keeton was the type of girl every girl wanted to be in elementary school, and scouts were hounding her to become a model. So when she transferred to the middle school her father was Principal of (he's also the principal of the high school and elementary school) she asked her dad if she could wear the boys uniform. No one not even the teachers know the truth except for her best friend Alvery, who was in love with her twin brother.
Andreas Perona was the best at everything until he transferred to the middle school branch, and found out he tied with the Principals son. Ever since he declared him his rival and hated Yukito or Yu as everyone calls him with a passion.
It's been three and a half years since they met, and they are now in high school. What's worse their roommates, and Yu has to keep her guard up. With a twin who wants her to date her rival, a rival who thinks she's a guy, and a best friend who is in love with Yu's twin, but everyone thinks their dating what is in store for her in high school. Read to find out.