Takumi and Hachi tell of their decision to marry. The other Trapnest and Nana are shocked by this. Nana is so upset she drops the Strawberry Glass they bought together back when they first moved in.

The love life of Ren and Nana has leaked to the press. Blast suspects Gaia to be involved. Nana faces the consequences, and leaves a message for Hachiko through a TV broadcast. Hachi on her side is having problems with Takumi and confesses to Junko and Kyosuke that she is in love with him, even though she wishes that she could love Nobu.

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.

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.

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.

BLAST visit Hachi to celebrate their latest success and discuss record contracts. Shin convinces Hachi and Nobu to go to the convenience store to buy more wine. On the way, Hachi and Nobu are forced to face their feelings for each other.

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.

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.

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.

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...

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...

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.

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.

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?

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?

Nana and Hachi confront Shoji and Sachiko over their relationship. Later, Hachi receives tickets to see "Trapnest" that she ordered in the past.

Shouji, Junko and Kyosuke discuss the possibility that Hachi's fiance is Takumi from Trapnest. Meanwhile Hachi meets Naoki for the first time and shows off her new apartment to him and Takumi. Takumi tells Hachi that she doesn't have to keep their relationship a secret from their friends and family and expresses his desire to go and meet with Hachi's parents and sisters.

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.

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.

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 decides she will break up with Takumi to be with 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 makes her final decision about her pregnancy. Takumi surprises her with his own.