乃木坂 春香

Haruka is the main female character of the story, and is Yuuto's classmate. Due to her beauty and intelligence, She is idolized at school and regarded as the school's most unattainable girl, even known by the French nicknames Nuit Étoile (The Night Star) and Lumière du Clavier (The Piano's Light). She is very skilled at playing the piano and has taken overall victories in international contests. She also has a gentle personality, is a natural airhead, and is quite clumsy. Her deep hidden secret is that she is a major otaku and loves anime and manga. In middle school, her secret was exposed and she received a certain amount of prejudice towards it which caused her to keep it a secret once she entered high school. When Yuuto finds out about it, Haruka is relieved that he does not tell anyone or harass her about it and over the course of the series, develops romantic feelings for him. She also comes from a rich family and privileged upbringing, so her interest in the otaku subculture is looked down upon due to her status in society, which is another reason why she keeps it a secret. Haruka once fled to a park after being scolded by her father, several years before. It was here that her anime obsession started when Yuuto gave her the first issue of Innocent Smile. While being very talented, she cannot draw well, but does not realize it because she is too proud of it for anyone to tell her directly.

Taken from url=http://en.wikipedia.org/wiki/Nogizaka_Haruka_no_Himitsu#Characters