While technically a beach episode, there’s not a ball or a bikini to be found. There are crabs—you gotta love crab—as well as a makeshift open-air classroom with rows of desks and a chalkboard, but otherwise the sand is just another flat surface for Nagara to lie on and wile away the hours.
When Nozomi catches a crab, it cuts her hand up pretty badly with its claw, but she soon heals; just another one of the rules of this “This World”, as the egghead Rajdhani calls it while explaining the situation.
While most of the class is in tents on the beach, Mizuho has, presumably through the three cat Amazon power called Nyamazaon, built a Disney princess castle full of stuff, but otherwise isn’t that different from Nagara in her fondness for straight chillin’.
Another girl steals makeup from Mizuho’s vast collection of things with impunity, but that and other items acquired from Nyamazon start to burst into blue flames, rumors spread that Mizuho is doing it intentionally.
Mizuho doesn’t help matters by stirring the shit on social media that the recent election was rigged in Michi’s (AKA Pony’s) favor—which is the truth; the extremely Kyuubey-like Hoshi helped rig it. Pony and Hoshi learn Mizuho is behind it and try to exact an apology, but Mizuho is stubbornly refuses.
When they confront her at the front gate, Hoshi uses his power of showing everyone potential futures to depict the entire island covered in blue flame; everything destroyed. On top of it all, Mizuho is exhausted and filthy from looking for one of her cats, who has gone missing.
While the rumor may have well gotten started since Mizuho is a natural target for envy and resentment among the other students due to her extremely cool power, Nagara still blames himself for blabbing about Mizuho knowing something about the flames, which got twisted into “Mizuho is responsible for the flames.”
But thanks to Rajdhani’s research and a retro Game Boy, it is determined that the blue flames appear every time someone receives something without a fair exchange. Among the things that burned-up, only Raj’s Game Boy was exchanged for some toys he made with his power, and only it escaped those flames. Therefore, it isn’t Mizuho’s doing, but the Rules of the World.
Among the students, most of whom end up in the “Punish Mizuho” camp/mob, only Nagara and Nozomi want to help her. They both know she’s not doing this, but also know that she hasn’t explicitly defended herself, which isn’t doing her any favors. Nagara also finds the missing cat, and unlike two previous instances of letting birds die, this time he takes care of the animal like the non-heartless person he is.
The two decides to go to her—nay, run to her, just as she’s literally making it rain fat stacks of cash, which soon burn up and set fire to the whole island. Mizuho, overcome with relief her kitty is safe, admits that she should have simply stated her innocence from the beginning. It’s an all-around wonderful performance by Mizuho’s seiyu Yuuki Aoi—which comes as no surprise as she’s one of the best in the business.
Nagara, Nozomi, and Mizuho oversee the ruined island—the realization of Hoshi’s vision—and concede the fact that they can’t live there any more. But then something happens: as the sun rises over the ocean, the island essentially resets itself to before everything burned up.
It’s as if the island, which set the rule of fair exchange, is forgiving all of the students for their stumblings as they learn of those rules and correct their misunderstandings. Mizuho comes down from her castle and apologizes, but only for making it rain flammable money…not the stuff she was accused of doing but didn’t really do.
Mizuho also stops by the beach where Nagara is lying to give him a token of her appreciation for finding her cat: a hat to keep his face out of the sun. When he asks if he needs to give her anything in return for it, she says with a gentle smile that it’s “her treat” before walking away.
This episode was significantly less weird and frightening than the first, but that tends to happen when you take the inscrutable black void out of the equation. What it was was another relatively straightforward exploration of how the court of public opinion can be wrong—in school or life—and it’s up to those who know it’s wrong to speak up. Nagara grew as a person in this episode, as did Mizuho, and they each gained a friend in the process.
Credit also goes to Rajdhani for not giving up on trying to make sense of the place, thus confirming the injustice being done to Mizuho, as well as Nozomi, for lending Nagara the encouragement to correct the injustice. Just as she’s the “Compass” who can see the ways out of these other worlds, she’s also a moral compass; a check against both rampant authority and rampant apathy.