Nariyuki presents his new smartphone, which his mother won and which the whole family shares. Turns out he has no idea how to use it and is easily frazzled when he tries, something Uruka finds cute. She shows him how to search for studying pointers, and ends up on an article extolling the virtues of studying in the bath, which everyone says is silly and that they’d never do it.
That night, while studying in the tub, Nariyuki tries to access his dictionary app, but ends up texting Fumino instead. She becomes very self-conscious about the fact that she’s texting him in the bath, even envisioning them sitting in it together, back-to-back, then apologizes to Ri and Uruka for having such unsavory thoughts.
His next attempt to access an app ends up calling Rizu, who after snatching her phone back from her protective dad, admits she’s in the bath and doesn’t get what the big deal is; sure, they’re both nude, but they can’t see each other. Then she closes her eyes, and when Nariyuki talks, it sounds like he could be in the bath with her.
Things escalate when an attempted voice command calls Uruka, who accidentally makes it a FaceTime call, revealing every bit of her untanned body usually covered by her swimsuit. For her part, Uruka gets a good look at Nariyuki’s torso. In the ensuing chaos, Nariyuki drops the phone in the bath. The next day at school, it’s understandably a bit awkward.
That the last person he calls in the bath is Uruka segues nicely to the episode’s second half, which is entirely devoted to Uruka, who again demonstrates not only that she’s the Best Girl of BokuBen, but of the entire Spring season.
Balancing the twin strenuous activities of studying and swimming takes its toll, and one morning Uruka collapses from exhaustion in the hallway. Fortunately, Nariyuki is there to help her to the infirmary. While waiting for the nurse, Nariyuki says out loud that whoever she likes is a lucky guy.
A very woozy Uruka, eyes still closed, pulls Nariyuki into an embrace, saying his name. Then her friends show up, and Nariyuki hides under the bed without thinking. There, he learns for the first time about the guy Uruka likes: according to one of her swim teammates, it’s him!
From the moment he hears this, Nariyuki can barely sleep. When he sees her next, he short circuits and walks into a street pole. When they touch elbows, it’s like an electric shock making his heart race. Fumino gives him the fourth lesson in understanding a woman’s heart: taking Uruka home, as she’s still recovering.
When Uruka thanks him and offers him a token of her gratitude, Nariyuki’s scrambled mind immediately looks to the nearby Mermaid Love Hotel…but Uruka meant she’d treat him to ramen at the shop next door. There, he can’t help but notice Uruka seems to be eating the ramen very seductively. But she’s not; he’s just seeing her in a new light; as a woman, not a mere childhood friend.
After ramen, they walk past a number of couples, and Uruka finally summons the courage to at least ask Nariyuki if he has someone “like that.” His quick and assertive “no” (he’s waiting until after entrance exams) makes her very happy. But then, he throws her for a loop, asking out of the blue if the boy she likes is him.
Now, while Uruka may be the Best Girl, her actions aren’t always the best—and in this case, they don’t help her cause in the slightest. She sabotages the entire moment by denying it with a dismissive laugh, which Nariyuki takes as settling the matter, and to curse himself for being so stupid. To which I say…DRAT!
At this point, Uruka is her own worst enemy. Later, in the bath again (though not studying), she curses herself for denying it so enthusiastically. But she doesn’t want to press matters, especially when she knows Nariyuki is focused on studying for exams, as she should be. And she’s scared of rejection, and of ruining the extremely solid friendship they currently enjoy.
That’s all well and good…if there was no competition, but Rizu, Fumino, and even Kurisu-sensei are in various stages of participation in the Yuiga Sweepstakes. Setting the record straight after exams might be too late. As for the friendship? Well, whether she asks him out and he says no, or someone else asks him out and says yes, that seems destined to change regardless!