When Ayane Tezuka was 19, she was a cute college student aiming to be a piano player. In these days she also was the private tutor of a young rich boy, Kou Narumiya, and sparks simply flew
between them! However, not only Kou was from one of the richest families in Japan but he was only 14, despite being much Younger Than They Look
. Once Kou's mother noticed and harshly warned Ayane to not get too close to Kou, such an attraction ended up in... well, not good terms.
Flashforward to six years. 25-year-old Ayane is now a beautiful school teacher in an all-girls school, is about to marry her long-time boyfriend and fellow teacher Naoto Murakami and her life seems to be placid and perfect... but she hasn't really forgotten Kou. All of a sudden, while attending a jazz-piano audition, she finds the now older Kou again. Old feelings sort-of return, and Ayane's heart is a mess from then on...
Rouge Noir is a short jousei manga by Kyouko Mizutani, spanning two volumes.
Rouge Noir has the following examples: