Nogizaka Haruka no Himitsu is set at the private high school Hakujō Academy in 日本 and centers around the male protagonist Yūto Ayase and his classmate Haruka Nogizaka. While Yūto is rather ordinary, Haruka is very attractive, intelligent, and rich. Due to this, she is the school's most unattainable girl and is so idolized that her classmates give her the French nicknames Nuit Étoile (The Night Star) and Lumière du Clavier (The Piano's Light). One day, Yūto's good friend Nobunaga Asakura asks him to return a book to the school library, and when he goes to return it, Yūto stumbles across...

Nogizaka Haruka no Himitsu is set at the private high school Hakujō Academy in 日本 and centers around the male protagonist Yūto Ayase and his classmate Haruka Nogizaka. While Yūto is rather ordinary, Haruka is very attractive, intelligent, and rich. Due to this, she is the school's most unattainable girl and is so idolized that her classmates give her the French nicknames Nuit Étoile (The Night Star) and Lumière du Clavier (The Piano's Light). One day, Yūto's good friend Nobunaga Asakura asks him to return a book to the school library, and when he goes to return it, Yūto stumbles across...