Someone already went and posted it on the lookup sheet, but if I don’t explain the joke here, I’ll have nothing to say, because they don’t go anywhere! *Sob*
byつなよし on page 161 is a reference to Tokugawa Tsunayoshi, the fifth shogun of the Togukawa dynasty. Tsunayoshi turned to religion in the later part of his reign, probably on the advice of his mother, and due to this, he began to pass a lot of laws regarding animal protection - particularly dogs, probably because he was born in the year of the dog. Hence the connection. Other fun things that happened during Tsunayoshi’s reign include the Adventure of the 47 Ronin, and the most recent eruption of Mount Fuji.
Also, if anyone’s not seen one of these before, the へんなくるま at the bottom of page 161 is… well, in this universe, it’s an Oggle Maps car.
Though come to think of it, I’m not sure we’ve seen the train station on page 163 before. It’s Kai-Tokiwa, the closest station to Motosu High School. On page 174, she’s shown disembarking at Utsubuna Station. That’s one clue towards working out where she lives.
Not the faintest idea of what シカモト on page 159 is meant to represent, and to be honest, chain stores aren’t much fun to search for.
Nadeshiko’s Oggle Maps close encounter, as shown on page 176, is here. Strangely, she’s not in the Google Maps version of the photo. That image was last captured in 2014, though, so I’m willing to bet that the next time the street view cars are out, there’ll be some fan there with cosplay or a cardboard cutout.
What’s “OFF” doing on page 157? Is it “(their) time off”?
Page 167, someone’s added a note on the lookup sheet to 一筋 saying “as a NA-adjective it can mean earnest or devoted or common, but I’m assuming it’s a noun meaning because of の”. It also has the meaning “earnest; resolute; intent; devoted” when it’s acting as a suffix, and when it’s acting as a suffix, it’s a noun.