When the summer heat arrives, Tsukasa and Nasa realize that the air conditioner in their little home doesn’t work at all. Nasa naturally knows enough about air conditioners to quickly pick one out, get it delivered same-day, and install it.
He needs to borrow some tools from an old friend from middle school, Nakiri Ouka. As Tsukasa learns, Nakiri quite pretty herself, but she’s so shocked by the news that Nasa married, her reaction is extremely, rudely, hilariously delayed.
With the new A/C installed, Tsukasa and Nasa kiss and go to bed, but Tsukasa feels it’s too hot, so Nasa sets it to stay on for an hour. When 26 degrees ends up being too cold for both, he ups the temperature to 28 degrees.
When he does this, he sees that it’s still a bit too warm for Tsukasa, who has pushed away her covers in her sleep, so he lowers it to 27. Then Tsukasa wakes up, tells Nasa she loves him, and kisses him. Since this heats them both up, they reduce the temperature down to 26.5.
The next segment has nothing to do with air conditioning or temperature compromises, but involves a new character voiced by Kuno Misaki: Kagami Kyuuma. Kyuuma is a beautiful but presumptuous girl who is a bit of a space cadet.
When Kaname isn’t around, she pretends Tsukasa is Kaname, even asking if she’ll put her hair in pigtails. Tsukasa is put off by how pushy and odd Kyuuma is, but her opinion softens when Kaname arrives, Kyuuma rushes out to buy ice cream for them both, and Nasa reveals he knows her too.
Kaname all but admits she puts up with Kyuuma’s weirdness because she’s cute, but she’s also capable of kindness.
Finally, when Nasa returns to Nakiri’s to return the tools she lent him, she asks him about what’s good about married life. He tells her how his wife smells great, how she drinks warm water, and how being married has expanded his world immeasurably.
This all sounds great to Nakiri…who then starts thinking favorably about getting a wife of her own! We’ll see if he and Tsukasa end up inspiring Nakiri, like they did his former teacher, to expand her world too.