Having come up with butkis in the search for Sousuke, it’s time for the crew to head home. But just as Erika and Sachi pile into their car, Hiro takes Nagi’s sleeve and declares that they’ll be taking the train home instead. On the ride home Erika tells Sachi about how Hiro said she wanted to “have” Nagi, and neither they nor their driver are convinced they’re not concerned.
As for Hiro, one reason for staying behind with Nagi is to visit a local shrine and collect another shrine stamp (naturally both these stamp nerds have their books on them). While Nagi prays for academic success with the occasional smidged of romance, Hiro admits to not praying for anything in particular, only expressing her gratitude that they made it there.
She could also be grateful for simply having Nagi to herself, a time that heavy winds and rain extend when the station is closed. With no buses home and a taxi too expensive, the two decide to spend the night in an inn. Sachi and Erika panic when they see Nagi’s text to this effect.
Nagi is a little out of his element too. It’s clear he and Hiro are being bad here, not just because they’re both engaged, but because they lie about being 22-year-old newlyweds (much to the delight of the inn staff). That said, youth is the time for being bad and testing boundaries.
This episode is replete with cute Hiro faces and poses, as she is in particularly playful mood, no doubt out of the aforementioned gratitude and contentment that comes with being all alone with the boy she likes. After the two bathe (in separate baths) and change into warm robes, they play the word chain.
Then a lizard (or gecko?) appears in their room and Nagi wigs out. Hiro moves towards it but trips on her robe, and the two end up in a very amorous position. Not only that, a flushed Hiro weaves her fingers into Nagi’s and asks him if, after a day of doing bad things, why shouldn’t they…keep going?
Nagi locks up, and Hiro then waves away the proposition by saying she wanted to go buy liquor, having placed a 1000-yen bill in Nagi’s hand. Nagi is scandalized, but understands Hiro’s desire to break free of her Model Student binds on occasion. That said, he’d rather they not get tore up. Hiro compromises and says she just wants sake.
Then a firm knock at the door comes, someone calls “POLICE!”, and Nagi indeed sees a Police badge through the peephole. Turns out it’s Erika and Sachi in sexy cop cosplay, complete with Sobasshi ID and pink cuffs. This is as Nagi was starting to change in preparation to make a run for it. I won’t linger on the questionable logistics of how the girls got there so damn fast.
Suffice it to say, their arrival prevented Nagi and Hiro from getting up to any more no good than they actually did, and on the ride home Nagi passes out after barely getting any sleep the night before. Erika asks Hiro what they did, and Hiro replies “just…stuff”, and cryptically declares that Nagi “really is a boy”.
Regardless of her lack of detail, Erika and Sachi now know Hiro is serious about Nagi. We’ll see if this spurs any action in them in the final episode, or if we’ll have to wait for another cour for any kind of break in the logjam.