We learn that Tanjirou was able to defeat Sabito, i.e. cleave the giant boulder, by sensing the “thread” of his target by smell, made possible during Total Concentration. After a celebratory dinner when Urokodaki gives him the cloud-emblazoned tunic like his and a kitsune warding mask, Tanjirou bids his master and still-sleeping sister goodbye and heads to Mount Fujikasane, which is replete with gorgeous glowing wisteria blooms.
The year-long blooms aren’t just for show, as the creepy twins who administer the Final Selection explain: demons hate wisteria, and so they are trapped above the elevation where the blooms don’t grow, making the top half of the mountain a demon prison. The applicants must survive seven days in order to pass. There are many other applicants, but we don’t meet any of them, which is was an unexpected but welcome choice.
Instead of introducing potential rivals and allies, the focus remains on Tanjirou, who decides he’ll stay as far east, where the sun rises earliest, as he can, and use the daytime when the demons aren’t active to rest. He smells his first two demon opponents before he sees them, and is initially a little uneasy, but remembers his training and defeats them both with relative ease (they had been fighting each other over terf, after all).
The third demon is a different story, as it is on a level unlike anything else he’s encountered. A giant grotesque mass of sinewy, veiny hands like something straight out of Akira, Tanjirou is again taken by fear at the mere sight of it, especially as it already has a human applicant in one of his many hands, and drops him into his maw.
Urokodaki told Tanjirou that the more humans a demon has eaten the stronger they are, and when Tanjirou confronts his Hand Demon, he helpfully tells him he’s eaten over fifty “brats” in his extremely long life (dating back to the Edo period).
Not only that, but this “morphed” demon has a particular grudge against Urokodaki, who imprisoned him on Mt. Fujikasane. He’s gotten his revenge by eating no fewer than thirteen of Urokodaki’s students—including Sabito and Momoko, who it’s now confirmed interacted with Tanjirou in some kind of spiritual form.
The demon successfully throws Tanjirou off the game on which he very critically needs to stay by describing in detail how the two others were killed, and our boy ends up smacked against a tree hard, his protective mask shattering. He avoids being killed only thanks, I believe, one of his departed little brothers shouting for him to wake up…just in time to dodge the demon’s killing blow.
Not about to let himself become Urokodaki’s fourteenth dead student (with that track record I can see why he was reluctant to train anyone else), Tanjirou re-centers himself, attains Total Concentration, and uses his specialized water-based attacks (which are beautifully rendered like Ukiyo-e waves) to slash the demon’s neck, defeating him.
So far Demon Slayer has been incredibly efficient, getting its protagonist from losing his family to meeting his master to training to reaching the final test that will make him a demon hunter. And yet even though I’m semi-binging, none of it has felt rushed in the least. Events pass as slowly or quickly as I’ve felt they should. Finally, this episode featured the most dazzling combat to date. As expected, ufotable knows what they’re doing.