Whole her life, Akira Tsubakiya has been told she looks like a boy. Because she's super tall, flat chest; and not girly.
In middle school, she made a promise with a boy, whom she met at the cram school - that they both would aim to get into the same high school, a prestigious academy. The boy, Haru, told Akira that he did like girls with long hair; so Akira has started to grow it out.
When Akira graduated from middle school, she decided to confess to Haru. Unfortunately, she found out that he had have a super-cute, girly, long-haired girlfriend. Akira ran home to chop off all her hair, decided there's no point to try to be girly.
Fast forward to Akira's first year in high school. She still wears a skirt, but the top half is a guy's uniform. Now, she's called "Prince Akira"; and almost the girls are infatuated with her.
Akira hasn't seen Haru in a while. When she does bump into Haru with his "girlfriend" - whom she discovers to be in fact a boy. What should she do now?