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.

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.

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

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.

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.

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.