As expected, Shiori was not gesturing towards the love hotel, but the beach nearby to make a sand castle. She invites Jirou to make a tunnel through it like old times, resulting in more innocently delivered double entendres as she tells him to go in deeper, etc. Akari is not amused by him acting all lovey-dovey towards Shiori. Notably, she is not acting the same way towards Minami.
When she and Jirou are assigned to go buy drinks and snacks for the group, Akari leaves his sight for two seconds and she’s mobbed by beach bros wanting to know her name and number. At first Jirou thinks she knows them, but it’s clear from her body language she doesn’t like their flirting, so in the heat of the moment he pulls her into an embrace and says they’re married.
This makes Akari happy, but then Jirou ruins it by apologizing like he always does, and for assuming she hated what she did when she said no such thing. She tells him to stop apologizing all the time, because it makes her feel like a loser for “letting her heart race”. Of course, one can’t really control one’s heart from racing!
After Shiori notes Mei’s tan line on her midsection is fading by touching her there, the two go into the bath where they’re in the midst of gyaru talk. Sachi and (possibly) Natsumi are the only actual non-virgins there, but they appreciate Mei contributing to their talk, while Akari and Shiori actually connect over their mutual discomfort with love talk.
After the bath, Akari runs into Jirou, notices his sunburn, and offers to rub aloe on his back (her watermelon nails are adorable btw). She notices he’s not ticklish there, and decides to test further by grabbing his midsection from behind. She’s very upfront about how she’s felt a distance between them since they arrived and doesn’t like it. When Sachi appears, they separate, and Jirou even calls Akari “Watanabe,” causing her to schedule a one-on-one talk later that night.
Once out by the beach shop, Akari lays it all out, literally: pulling off her hoodie to reveal the skimpier bikini just for him. She tells him she was excited about going to the ocean with him, but he’s so self-conscious about how others see them, it makes her feel cold and lonely.
When Jirou says he assumed she’d be embarrassed around a plain boring guy like him, she says she choses who she hangs out with. She knows how he looks at her at their apartment, and doesn’t want that to chance just because they’re somewhere else.
When Jirou points out that Akari is talking like a jealous girlfriend would, she pushes back on that, but not all the way. That’s when Shiori and Mei show up and they have to hide in a hot cramped part of the beach shop in a very compromising position.
Again, Jirou’s main concern is “being seen” by the other girls, and even though he’s right on top of her, Akari feels like she doesn’t exist. He’s putting his concerns about what others might see or hear or think over her. Back in the simpler times she was admiring Minami, she kept a more optimistic outlook, but being close and comfortable with Jirou for months now only makes her scared about him leaving.
Even when Shiori and Mei run off, with the former worried about ghosts, the two stay in that cramped space and talk this out. He brings up how she wanted him to look at her, and she says “that was just in the moment”, but if she said that about all the things she’s said so far, why would he change his behavior? Basically, does she mean what she’s saying or not?
As expected, the cramped, overheated conditions result not only in Jirou getting hard (and Akari mistaking it for a knee) but actually fainting from heatstroke. He comes to back at the bathhouse, and when he’s feeling better, Akari is more clear about what she wants out of this. She doesn’t just want him ogling her body, but looking at all the different parts of her.
She also wants to see and know all of his different parts, seeing as how they’re still married and all. And it’s the “still” that stays with Jirou after their talk. What will they be to each other when the marriage practical is over? What do they want to be? And where do Shiori and Minami fit into that future? There’s a lot to sift through in the final two episodes, but at least these two are really looking at each other and consciously thinking about this stuff.