Nana Osaki is a guarded and ambitious young woman with a strong will and a rough past. She is the vocalist for a punk band called Black Stones and she desires fame and recognition more than anything else. Nana Komatsu is an outgoing and flighty young woman with a weak will and a stable past. Her life revolves around her desire to find love and marriage. The two meet for the first time while traveling to Tokyo - in pursuit of their respective dreams - and they later decide to be roommates. Although drastically different people, the two become very close and together they find out if their biggest dreams have room for their best friend.
The best episode of "NANA" season 1 is "Prologue: Nana and NANA", rated 7.7/10 from 189 user votes. It was directed by Morio Asaka and written by Tomoko Konparu. "Prologue: Nana and NANA" aired on 4/5/2006 and is rated 0.4 point(s) higher than the second highest rated, "Love? Friendship? Nana and Shoji".
Nana recalls the first time she meet the other Nana on the train while traveling to Tokyo.
Director: Morio Asaka
Writer: Tomoko Konparu
Komatsu Nana's past is revealed, from graduating high school to the time when her and Shoji met in Community College.
Director: N/A
Writer: Tomoko Konparu
Nana likes Shoji, but has decided to remain friends so as not to ruin the relationship they have. Junko and Kyousuke reveal their plans to go to Tokyo and get into an art College there. Nana wants to go with them, but Shoji confronts her and says she should stay in their hometown.
Director: Tsuyoshi Matsumoto
Writer: Tomoko Konparu
Komatsu Nana's past is brought to a conclusion and we now reveal the past of the "other" Nana. Oosaki Nana is the vocalist in a local band, the "Black Stones", but problems soon arise when one of the members announce their intention to leave for Tokyo to join another band.
Director: Atsuko Ishizuka
Writer: Tomoko Konparu, Tatsuhiko Urahata
Ren has revealed that he will be moving to Tokyo to join the band "Trapnest". This leaves the rest of the band trying to decide what to do next, with Nana having to face the toughest decision of them all. Will she follow Ren to Tokyo, or remain behind to pursue her own dreams?
Director: Kanji Wakabayashi
Writer: Tatsuhiko Urahata
Back in the present, Nana and Nana meet on the train to Tokyo. More detail is revealed around their meeting and events immediately after.
Director: Nanako Shimazaki
Writer: Tomoko Konparu
The two Nana's agree to share the apartment. Shoji and the others worry about Nana living alone with a total stranger.
Director: N/A
Writer: Tomoko Konparu
The two Nana's have now moved in together and decide to go shopping for furniture for the apartment. While talking, Oosaki Nana decides to nickname Komatsu Nana "Hachi" (eight) to make things less confusing.
Director: N/A
Writer: Tatsuhiko Urahata
Nana and Hachi get settled into their new apartment. Hachi begins her new job. That night, they receive a visitor from Nana's old band back home.
Director: N/A
Writer: Tatsuhiko Urahata
Nana and Nobu, along with Hachi, start their search for two more band members. Meanwhile, Shoji is asked to train a young girl named Sachiko. Hachi previously joked about Shoji having an affair with a woman named Sachiko, but this is just a coincidence, right?
Director: N/A
Writer: Tatsuhiko Urahata
Hachi's boss reveals some bad news to her. Meanwhile, Shoji is becoming closer with Sachiko, perhaps dangerously so. Nana's former band member, Yasu, makes an important decision.
Director: N/A
Writer: Tatsuhiko Urahata
Hachi is trying to get her life back on track after suddenly losing her job. Meanwhile, Shoji is forced to work out his feelings for Sachiko and Hachi.
Director: N/A
Writer: Tatsuhiko Urahata
Hachi finds a new job but is not enjoying it at all. Nana's band finally get an opening to play. To celebrate, they go to the family restaurant where Shoji and Sachiko work. This spells trouble for everyone involved.
Director: N/A
Writer: Tatsuhiko Urahata
Nana and Hachi confront Shoji and Sachiko over their relationship. Later, Hachi receives tickets to see "Trapnest" that she ordered in the past.
Director: Hiroshi Kugimiya, Katsuyoshi Yatabe
Writer: Kazuyuki Fudeyasu
Nana's band, "Blast", are preparing for their first live concert. Hachi goes to see them and meets a strange girl connected with Nana's past.
Director: N/A
Writer: Kazuyuki Fudeyasu
Whilst apologising to Misato for her outburst the night before, it is hinted to Hachi that Ren used to be in Nana's band. Hachi asks Nobu to find out more about Nana and Ren's past.
Director: N/A
Writer: Kazuyuki Fudeyasu
Nana and Hachi travel back to her hometown to see Trapnest perform. While there, Hachi learns a few things about Nana she didn't know before, including her feelings for Ren now.
Director: Atsuko Ishizuka, Toru Takahashi
Writer: Kazuyuki Fudeyasu
After the concert, Ren calls Yasu, having noticed Nana in the crowd. With Yasu's help Nana contacts Ren and arranges to meet in their hotel...
Director: Atsuko Ishizuka
Writer: Kazuyuki Fudeyasu
Nana and Ren discuss their future. Hachi starts thinking about finding another boyfriend. Ren and Nana's band decide to meet at the Nana's apartment to play Mahjong and another surprise guest turns up as well...
Director: N/A
Writer: Tomoko Konparu
During the Mahjong game, the group discover that Yasu and Reira used to be an item in the past. Hachi gets to know Nobu a little better and sees qualities in him that she sees in herself. Hachi wakes later to find she's late for work, and it looks like this was the last straw...
Director: N/A
Writer: Tomoko Konparu
Hachi happens to meet Takumi after losing her job. It isn't long before they're headed for his hotel... Will Hachi go through with this? And can she bring herself to tell Nana?
Director: N/A
Writer: Tomoko Konparu
The last day of Trapnest's tour is here. Hachi wonders if Takumi will come to see her now that the tour is over. Nobu and Shin join Trapnest at the after party, where a confrontation emerges.
Director: N/A
Writer: Kazuyuki Fudeyasu
Nobu comes to terms with his feelings for Hachiko whilst Nana confides in Yasu that she will be by Hachi's side no matter what she decides - even though she disapproves of Takumi. Ren asks Nana to move in with him. Reira gives Shin money to spend the night with her.
Director: N/A
Writer: Kazuyuki Fudeyasu
BLAST are noticed by a record company thanks to Yasu. Nana tells Hachiko what Takumi said to Shin and Nobu but also tells her that Nobu is in love with her. Later that day, Nobu confesses his true feelings to Hachi. Shin leaves his lighter at Reira's and gets it back but spends no time with her much to Reira's chargrin. Hachi is torn between Takumi and Nobu.
Director: N/A
Writer: Kazuyuki Fudeyasu
Nana goes to live with Ren for the two weeks that Trapnest have off. Reira and Takumi visit America and bump into each other there. Nobu walks Hachi home but Takumi turns up and walks her the rest of the way. Hachi avoids going to watch BLAST practice because she can't face Nobu and Misato comes to visit for summer vacation.
Director: N/A
Writer: Kazuyuki Fudeyasu