The manga series NANA by Ai Yazawa begins serialization in the Japanese magazine Cookie.
The NANA anime television series premieres, bringing the manga's story to animated life.
The first live-action film adaptation of NANA is released in Japan.
Ai Yazawa announces a hiatus for the NANA manga series due to health issues, pausing the story's publication.
Nana Komatsu and Nana Osaki first meet while traveling to Tokyo, starting their intertwined life stories.
Nana Komatsu moves in with Nana Osaki in Tokyo, sharing an apartment and starting their deep friendship.
Nana Osaki's band, Blast (Black Stones), is formed and begins performing in Tokyo's club scene.
Ren Honjo and Nana Osaki reunite after many years, reigniting past feelings.
Nana Komatsu begins a romantic relationship with Nobuo Terashima, a guitarist.
Blast gains increasing popularity and begins recording their debut album.
Nana Komatsu marries Shoji Endo, leading to significant changes in her life.
Blast records and releases their major label debut, increasing their fame.
Nana Osaki faces personal and professional challenges as the band gains fame.
Nana Komatsu and Shoji Endo finalize their divorce after a tumultuous marriage.
Tension grows within Blast leading to internal conflicts that threaten the band's future.
