Back in the present, Nana and Nana meet on the train to Tokyo. More detail is revealed around their meeting and events immediately after.

Komatsu Nana's past is revealed, from graduating high school to the time when her and Shoji met in Community College.

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.

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.

The two Nana's agree to share the apartment. Shoji and the others worry about Nana living alone with a total stranger.

Nana recalls the first time she meet the other Nana on the train while traveling to Tokyo.

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.

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.

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.

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.

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...

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?

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.

Hachiko admits to Nana that she loves Nobu after spending the night at his place. Junko, her boyfriend and Shoji try to analyse why Hachi is with Nobu. Yasu and the record company manager meets with Shin's father to sign the contract.

Hachi feels ill during work and her boss tells her to see a doctor. Nobu gets Nana a job at the moving company he part-time works for so she can make some money. Hachi makes a shocking discovery.

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.

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.

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.

Hachi decides she will break up with Takumi to be with Nobu.

BLAST's first live is sold out. Hachiko feels lonely after Nana turns her down to celebrating at hers so she goes to see Takumi.

Hachi makes her final decision about her pregnancy. Takumi surprises her with his own.

Reira is upset about Takumi and Hachi's engagement.

The Black Stones perform their new song for their management. Later, Shin and Nana have a big argument. Nana heads home to apartment 707 for the first time in nine days only to find that Hachi has moved out.

With Blast holed up in a secret hotel room, Misato has come to visit again while Yasu and Gaia finally make a decision about the debut. Nana tells Nobu that she has a plan to get Hachi back. Trapnest's members leave for London and Hachiko heads back to her hometown, while Reira discovers that Blast's debut single will be released on the same day as Trapnest's new single.

Hachi's sister Nao asks Hachi about Nana, later Takumi arrives home from London and gives Hachi her engagement ring. With the rest of Trapnest still in London, Ren and Reira begin to realise the depth of Yasu's feelings for Nana when Mari points out that he has placed Blast ahead of his law apprenticeship commitments. Meanwhile with the members of Blast sent to a wilderness camp by Gaia, Shin takes the oppurtunity to email Reira, while Yasu admits to Nana that he is in love with her.