Never Give Up (manga)

Kiri is from a family in the modeling industry, unfortunately she does not have the right look to be a model. Tooya is an effeminate young male model who is much shorter than Kiri. When he comes to Kiri to ask about a modeling job, she remembers her promise to be a princess for him. Since Tooya is employed by Kiri's mother, Kiri begs her mom to let her model too. Kiri does not have the right looks for a female model, but would make a gorgeous guy. Thus Kiri makes her model debut as a male model while trying to get girly Tooya to fall in love with her. 

Kiri Minase is from a family who owns a modeling agency, Kiri is a girl but is born with the male looks of her model dad which causes problems in school as well as in her daily life. Enter Touya Kiri's childhood friend as well as her crush. Kiri, a long time ago promised Touya that one day she would become more like a princess for him. (Which is hard enough becuase she looks like a boy but Touya has some characteristics of a girl. )Kiri's mom decides to chose Touya for her modeling agency because he has the looks, Kiri somehow gets herself wrapped up into being one too. Theres just one problem... Kiri is going to be modeling as a boy and if anyone finds out, it could ruin Kiri's life.