As some point in the past when she’s a young woman, and in the present, Tokiko admires Chekhov’s Moon Rock in the case in her home, then and now looking somewhat weary.
The morning after Tsukasa and Nasa’s reception, she joins Nasa to watch the sun come up over fancy toast from Ginza and French butter. Nasa remarks how Tokiko’s particular way of doing things reminds him of his wife.
Tokiko seems to want to tell Nasa something important—perhaps about that rock—but Tsukasa interrupts, having been roused from that giant glamping bed by the heavenly aroma of toast.
Back home, Nasa informs Tsukasa that his apartment building has nearly been completed, which means they’ll be moving out of the spare room soon. They visit the place, which is bigger and more modern. His new apartment will also have a bathtub, something Tsukasa approves of until she recalls what that means for the two of them, then she blushes.
When Kaname hears the two are moving, she accuses Nasa of being a pervert and horndog, while she’s the one who jokes about wanting to peek in at the couple messing around. In truth, she’ll be lonely if they’re not there. Tsukasa assures her she’ll still see plenty of them both: she’ll keep working the front desk of the bathhouse, while Nasa will keep using the room as an office.
That night while on a stroll, Nasa hugs Tsukasa, and she uses the opportunity to be honest and forthright with her husband: his hugs suck. His tendency to position his arms around her waist puts her in an uncomfortable longcat position.
After drawing some diagrams on a rhetorical chalkboard, she gives him an example of the right way to hug someone shorter than him: by keeping his arms up around her shoulders. She in turn can pull him in closer; Nasa marvels at how much better a fit this hug is.
When it’s Nasa’s turn to be upfront, he asks permission to move Tsukasa back to the futon and adjust her pajamas, but Tsukasa angrily rejects the notion that she’s a messy sleeper, even though she’s the messiest. That said, if these are the things these two fight about, they’ll be fine.
Nasa is pondering photographing Tsukasa in her messy sleeping state the next morning, but she gets a call from Chitose: Tokiko fell. They visit her in the hospital where she’s well on the mend and in good spirits. When she excuses herself to go to the bathroom and grab a coffee, Nasa follows, leaving Tsukasa to play Tokiko’s super-difficult handheld video game.
On the hospital’s roof, Nasa asks Tokiko if she’s really okay, having noticed a change in her gait from the camping trip. He also brings up what she wanted to talk about. Tokiko doesn’t go into great detail here unfortunately, but she does give Nasa her moon rock.
She calls Tsukasa a “normal girl” and the rock “just a rock”, but it’s clear she cherishes both, and now she knows Nasa is the right person for Tsukasa to share her long, long life with. Tsukasa had told Tokiko to live her own life, but she’d hesitated to do so. Now she can do so without worry. Tsukasa is in good, kind hands that will never let her go.