With Nana K and Takumi’s wedding two weeks away, both Nana K and Nobu are nervous about seeing each other, but Nana O is determined to bring them together at the fireworks show that the band is attending in disguise.
Yasu gets permission from their manager for everyone to attend the fireworks show. Disguised to protect themselves from ardent fans, the band members wait in apt. 707 for Nana K.
Nana K is overcome with fan fever when she sees Blast’s live performance on TV. Hoping to reconnect with Nana O and apologize to Nobu, she texts Shin with an invitation to a fireworks show.
Blast and Trapnest prepare to appear on the same show together, giving Ren an opportunity to ambush Nana in her dressing room with a shocking proposal.
Nana O recovers from her collapse, and Blast’s schedule becomes crammed. Nana relies on Yasu to handle the stress, but the image of Ren is always at the back of her mind.
Blast records at a training camp, while in Nana K’s hometown, Takumi charms and is charmed by the Komatsu family.
Takumi returns from London and prepares to meet Nana’s parents, while Ren ponders if he can ever love Nana O the way that Yasu does.
While Blast deals with the repercussions of the media attention, Nana K makes up with Takumi, only to discover he’s going away—to London.
Nana O and Ren suddenly find themselves in the spotlight when their relationship becomes fodder for the entertainment media. Everyone’s on edge, including Takumi and Nana K, who have their first fight.
Nana O is ready at last to see Nana K again, but is turned away at their building as a stalker fan! Nana K is actually only steps away at a coffee shop with Shin, who tells her to stand by her decision.
Takumi and Nana K are blissful in their new apartment, but Reira is torn apart by the engagement, prompting Shin to rush to her side.
Nana O stays away from apt. 707, but unknown to her, Nana K has moved into a luxurious new apartment and is spending her days knitting for the baby.
A brokenhearted Reira has rushed to Yasu for comfort, sending the recording studio in an uproar at her disappearance.
Nana O is disgusted to find Takumi at the apartment, walking around like he owns the place, and the general unrest deepens when Takumi reveals his and Nana’s engagement to the rest of Trapnest.
Reeling from the Nana K’s news, Nana O runs to her usual source of comfort—Yasu. Nana K in the meantime runs to Junko and Kyosuke, and when she returns home, she finds Takumi waiting for her.
Takumi surprisingly steps up to take responsibility for Nana’s pregnancy, but Nana O is devastated and Nobu heartbroken.
Misato and Nana O worry over Nana K. When Shin reveals details of his family’s past, Nana O and Nana K launch into a discussion of motherhood.
Nana O is worried about Nana K, Misato is worried about Blast’s contract, and Nana K is worried about a possible pregnancy!
Everyone is happy about Nana K and Nobu dating, especially Nana O. But Takumi is not so happy when Nana’s cell phone rejects his calls, and Ren sees trouble ahead.
Nana and Nobu fall in love under the stars, but the shadow of Takumi still lingers between them, unless Nana can make the final break.
Nana K wants someone to love for the rest of her life, and she begins to think it won’t be Takumi. Then she and Nobu share a moment alone…
A producer invites Blast out to dinner after their live show, while Nana K prepares a feast at home, only to be let down and run straight to Takumi’s arms.
Nana K is torn between her affection for Nobu and her undeniable attraction to Takumi, but finds that Takumi’s draw is irresistible, leaving Nobu feeling betrayed.
Blast is on the verge of getting a recording deal and prepare for a live show. Behind the scenes, Nana O decides to stay at Ren’s for a while, leaving Nana K brokenhearted.
Nana O confesses her worries about Takumi’s womanizing to Yasu. Nana K, happily oblivious, pursues her relationship with Takumi, while Nobo works up the courage to reveal his feelings.