Nana (ナナ) is a Japanese manga series written and illustrated by Ai Yazawa. It was serialized in Cookie magazine from July 2000 until June 2009 when it went on indefinite hiatus, with almost all its chapters collected into 21 tankobon volumes published by Shueisha. The series derives its title from the name of the two main characters, both of whom are called Nana. Nana Komatsu is a small town girl who goes to Tokyo to follow her boyfriend and college friends, with the hope of having her dream life.  Nana Osaki was in a popular punk rock band in her hometown. She goes to Tokyo with the goal of making it big as a singer. The two Nanas meet on the train ride to the city. Later, they run into each other again when they happen to check out the same apartment, and the girls decide to become roommates. The series chronicles their friendship and their lives as each chases her dreams.

The manga was adapted into a live-action film in 2005, with a sequel released in 2006. An anime adaptation created by Madhouse aired on Nippon TV between April 5, 2006 and March 27, 2007. All Nana media has been licensed for English language release in North America by Viz Media. They serialized the manga in their Shojo Beat magazine until the August 2007 issue, while also publishing it in the tankōbon format. They released both films in 2008 and their English dub of the anime was broadcast on the Funimation Channel   beginning in September 2009. Nana won the 2002 Shogakukan Mang Award for Shojo manga and has sold over 43 million copies.

Plot:

Nana Komatsu has a habit of falling in love at first sight all the time, and depending on other people to help her. When her friends, and then her boyfriend, leave for Tokyo, she decides to join them a year later after having saved enough money at the age of twenty.

Nana Osaki, the other Nana, is the punk-styled lead vocalist of a band called Black Stones (BLAST for short). She had lived with her boyfriend, bassist Ren Honjo since she was 16, but when Ren is offered a chance to debut in Tokyo as a replacement member of a popular band called Trapnest, Nana chooses to continue on with BLAST and to cultivate her own career instead of following Ren, as she has too much ambition to be relegated to a rockstar's girlfriend. She eventually leaves for Tokyo at the age of twenty to start her musical career.

The two Nanas meet on a train by chance, both on their way to Tokyo. After a string of coincidences, they come to share an apartment. Despite having contrasting personalities and ideals, the Nanas respect each other and become close friends. While BLAST begins to gain popularity at live gigs, the two Nanas face many other issues together, especially in the areas of friendship and romance. The story of Nana revolves heavily around the romance and relationships of the two characters as one seeks fame and recognition while the other seeks love and happiness.