Gathering

The fifteenth episode of season two, adapting chapters 87 through 89, opens with Tanjiro returning the sleeping Nezuko to her box and vowing to fight on. Gyutaro mockingly calls Tengen a chosen talent, but the Sound Hashira rejects the label, naming truly gifted slayers like Gyomei and Muichiro and admitting he can never match the late Kyojuro. A flashback shows young Kagaya thanking Tengen for rejecting his cruel upbringing. Reinvigorated, Tengen separates the demons with bombs and blade work, then his three students join the fray.

Tengen's resolve

Despite the creeping poison, Tengen reveals his resistance as a shinobi and beheads Daki again while slitting Gyutaro's throat. Yoshiwara is evacuated by Makio and Suma, and the wounded Hinatsuru makes her way out.

One unified battle

Zenitsu launches Daki into the sky to confront her over the women she hurt, while Inosuke pairs with him against her. Gyutaro embeds one of his eyes on his sister's forehead so the two can strike in perfect sync. Hinatsuru fires a kunai volley laced with a wisteria-based agent, and Tanjiro seizes the opening to drive his blade into Gyutaro's neck.

The installment draws its name from chapter 87, and the eyecatchers loosely recreate that chapter's cover. A sequence where Inosuke goads Daki into hurling more obi, which then stall Tengen and Tanjiro, is original to the anime. The adaptation also has Gyutaro cut and poison Tengen two additional times beyond the manga.