On board the train to Tokyo to meet her boyfriend Shoji, Nana Komatsu ("Hachi") happened to sit beside Nana Osaki who was traveling to Tokyo to fulfill her dreams of becoming a musician. The vocalist for her punk band "Blast", Nana aims for a major debut for "Blast" in Tokyo where her boyfriend, Ren, is the guitarist for a popular band "Trapnest". Sharing the same name "Nana", both girls quickly form a bond of friendship. Their paths cross again when they encounter each other while searching for accomodation in Tokyo. Eventually they decide to live together in the same unit and this further strengthens their bond as the two "Nana(s)" go through their love lives and career.

Alternative title:

NANA (TV): Complete Box Set + OVA episodes:

• Episode 01 - Joshou - Nana to Nana (Prologue - (Komatsu) Nana and [Oosaki] Nana)
• Episode 02 - Koi? Yuujou? Nana to Shouji (Love? Friendship? [Komatsu] Nana and Shouji)
• Episode 03 - Nana to Shouji, Koi no Yukue ([Komatsu] Nana and Shouji, The Whereabouts of Love)
• Episode 04 - Nana no Koi, Nana no Yume ([Komatsu] Nana's Love, [Oosaki] Nana's Dream)
• Episode 05 - Ren no Yume, Nana no Omoi (Ren's Dream, [Oosaki] Nana's Memories)
• Episode 06 - Yuki no Joukyou! Nana to Nana (Snow on the Way to Tokyo! [Komatsu] Nana and [Oosaki] Nana)
• Episode 07 - Yasu Toujou! 707goushitsu (Yasu Appears! Room 707)
• Episode 08 - Ichigo Gurasu to Ren no Hana (The Strawberry Glasses and Ren's Flower*)
• Episode 09 - Nobu Joukyou! Nana no Uta (Nobu Comes to Tokyo! [Oosaki] Nana's Song)
• Episode 10 - Bishounen Shin Toujou! (Pretty Boy Shin's Appearance!)
• Episode 11 - Sachiko, Wazato da yo? (Sachiko, It's Intentional, You Know?)
• Episode 11.5 - Junko no Heya (Junko's Room)
• Episode 12 - Kyuu Sekkin! Shouji to Sachiko (Suddenly Getting Closer! Shouji and Sachiko)
• Episode 13 - Sachiko no Namida, Shouji no Kesshin (Sachiko's Tears, Shouji's Determination)
• Episode 14 - Shurajou no Famiresu (Fight Scene at the Family Restaurant)
• Episode 15 - Burasuto, Hatsu Raibu (Blast, First Live)
• Episode 16 - Nana no Koi no Yukue (The Whereabouts of [Oosaki] Nana's Love)
• Episode 17 - Toranesu, Raibu (Trapnest, Live)
• Episode 18 - Hachi no Inori, Nana no Omoi (Hachi's Prayer, Nana's Memory)
• Episode 19 - Nana no Gohoubi ([Komatsu] Nana's Prize)
• Episode 20 - Kyuutenkai! Hachi no Unmei (Acceleration! Hachi's Fate)
• Episode 21 - Suiitoruumu no Yume (Suiteroom Dream)
• Episode 21.5 - Junko no Heya (Junko's Room)
• Episode 22 - Tanabata no Negai, Hachi no Koi (Wish Of July 7th, Hachi's Love)
• Episode 23 - Dare ni mo Watashitakunai (I Don't Want to Hand You Over to Anybody)
• Episode 24 - Midareru Hachi no Kokoro (Hachi's Confused Heart)
• Episode 25 - Kimagure de Katte na Otoko (A Capricious and Selfish Man)
• Episode 26 - Surechigau Hachi to NANA (The Passing Hachi and NANA)
• Episode 27 - Hachi no Hoshii Mirai (Hachi's Desired Future)
• Episode 28 - Hachi to Nobu, Kyuu Sekkin (Hachi and Nobu, Urgent Approach)
• Episode 29 - Aijou Hyougen no Mondai (The Problem of Expressing Love)
• Episode 30 - Kekkai Girigiri, NANA no Kokoro (Breakdown, NANA's Heart)
• Episode 31 - Hachiko, Ninshin (Hachiko, Pregnant)
• Episode 32 - Tsunaida Te wo Hanasanai de (Don't Separate the Joined Hands)
• Episode 33 - Hachi no Sentaku (Hachi's Choice)
• Episode 34 - Wareta Ichigo no GURASU (The Broken Strawberry Glass)
• Episode 35 - Reira no Kodoku (Reira's Loneliness)
• Episode 36 - BURASUTO Shinkyoku!! (Blast's New Song!!)
• Episode 36.5 - Junko no Heya (Junko's Room)
• Episode 37 - Hachi, Shiroganeeze (Hachi, High-Class Housewife)
• Episode 38 - Unmei no hikigane (The Trigger of Fate)
• Episode 39 - Hachiko, mi tero yo (Look, Hachiko)
• Episode 40 - BURASUTO, DEBYUU! (Blast, Debut!)
• Episode 41 - BURASUTO gasshuku (Blast Lodging Together)
• Episode 42 - NANA, totsuzen no hossa (NANA, Sudden Fit)
• Episode 43 - BURASUTO, GERIRA RAIBU (Blast, Guerilla Live)
• Episode 44 - BURASUTO VS TORANESU (Blast VS Trapnest)
• Episode 45 - BURASUTO TV hatsu shutsuen (Blast's First TV Performance)
• Episode 46 - Saikai! Hachi to Shoji (Reunion! Hachi and Shoji)
• Episode 47 - Hanabi taikai, Hachi to NANA (The Fireworks Display, Hachi and NANA)