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.

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.

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.