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

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.

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

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

The first of three recap episodes. This one reflects on the events of episodes 1-11.

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...

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?

The second of three recap episode. This one reviews the events of episodes 12-21

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 is pregnant but doesn't know if it's Takumi's or Nobu's. She tries to hide it from those around her, especially Nana.

Nana and Nobu argue over what to do about the baby and whether or not Nobu should become the baby's father. Nobu goes to see Hachi. Reira explains the 'red thread' belief to Shin.

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

The last of three recap episodes. This one revisits the events of episodes 22-36.

After Blast returns from their training camp, the band members move into Gaia's boarding house. Reira replies to Shin's email and she and Mari later find Ren asleep in the bath. Takumi meets Nana's family for the first time. Nana starts hyperventilating after Nobu reveals that he has given up on Hachi.

A mysterious actress named Miyu gives Nobu directions on how to help Nana with her panic attack. Takumi notices that Reira has Shin's lighter, although Reira claims she received it from a fan. Blast has an unannounced live in Shinjuku, which Hachiko unknowingly stumbles upon.

As both bands rehearse for a TV appearance, Yasu confronts Ren about his drug use and treatment of Nana. Ren later proposes to Nana, followed up by a session of rough sex which excites and terrifies Nana at the same time. Reira and Shin manage to sneak out for some alone time, while Nobu is discouraged when he learns that Miyu is seven years older than him.

Trapnest and Blast make their TV appearances. Hachi admits to Junko that she feels the desire to explain things to Nobu because Shōji never explained his affair with Sachiko to her. The members of Blast play Mah-Jong with their neighbours, Yuri and Miyu. Hachi arranges to meet up with Blast for the fireworks.

As Blast's members excitedly prepare for the fireworks festival by cancelling their other appointments and finding disguises, Hachi heads to Jackson Hole where she encounters Shoji for the first time since their breakup. Meanwhile Takumi and Reira discuss Ren's desire to marry Nana.

Several years in the future, the members of Blast plus Hachi and her daughter Satsuke meet each other again at Room 707 for the fireworks display, but strangely Nana is not present. Back in 2001, Hachi has cold feet about seeing Nobu again so Nana lies and tells her that he won't be present for the fireworks.