Ao truly cannot study now that she’s thinking about Takumi more, which means her grades drop precipitously, necessitating a trip to a studying retreat. Naturally, that retreat is at a beach so Ao will end up in a swimsuit—a very revealing, cherry-print swimsuit selected by Miyabi to accentuate Ao’s bust.
Takumi and his friend (who is interested in Miyabi) are also there, thanks to Ao’s dad blabbing about her whereabouts. Since Ao is three whole hours early for her study session, she decides a little time on the beach couldn’t hurt.
Ao looks so good in the bikini, Takumi has trouble summoning words. When they’re out on the water together, Ao assumes sex to be imminent, when in reality Takumi isn’t coming close to doing anything of the sort. Ao is almost disappointed when he doesn’t make any move at all, and in her anger, her top pops off, its strap sabotaged by Miyabi’s scissors.
The intent is clear: create a moment so embarrassing Ao retreats from her slow-burn courtship experiment, paving the way for Miyabi to swoop in and deflower Takumi. Only problem is, yup, Takumi still has no romantic feelings for Miyabi. So it’s a battle of attrition.