Hana-Kimi 3-in-1 Edition Vol. 2 Manga
(W/A/CA) Hisaya Nakajo
Includes volumes 4, 5 and 6. It looks like Mizuki's cover might be blown when she finds out she's going to have to compete...in a cross-dressing match. She's going to have to be a boy pretending to be a girl - but that might give away that she's already a girl pretending to be a boy. Plus, a schoolmate has a crush on Mizuki...only he's super confused because he thinks she's a boy!