Nana (stylized as NANA) is a Japanese manga series written and illustrated by Ai Yazawa. It was serialized in the monthly shōjo manga magazine Cookie from May 2000 to May 2009 before going on hiatus. The series centers on Nana Osaki and Nana Komatsu, two women who move to Tokyo at the age of 20, with the story focused on Nana O.'s pursuit for fame and Nana K.'s pursuit for romance, all while struggling to maintain their friendship.
On March 5, 2001, Nana Osaki and Nana Komatsu (nicknamed Hachi) cross paths when they both move to Tokyo after turning 20 years old: Nana O. to pursue a professional music career with her band, Black Stones, on her own merit; and Nana K. to join her friends and move in with her boyfriend. Despite having different personalities and ambitions, the two women find commonalities with each other and, by coincidence, move into the same apartment. However, as they follow their dreams, troubles of fame and love begin to test their friendship~