Against Corps Rules

With the battle over, masked agents move quickly to tidy the aftermath while the recovering Zenitsu watches. He recognizes the young woman directing them as someone from Final Selection, marked by a hairpin like Shinobu's. The wounded are to be carried to her residence, the Butterfly Mansion, and the team also recovers the bound, unconscious Inosuke.

Shinobu presses Giyu to step aside and let her deal with Nezuko, even offering a gentle poison. Giyu instead tells Tanjiro to take his sister and run despite his injuries. Tanjiro flees through the forest carrying both Nezuko and her box, terrified that the Corps will never tolerate a slayer traveling with a demon sibling.

Zenitsu and Inosuke are recovered as the Kakushi, the Corps' cleanup brigade, secure the battlefields. Shinobu confronts Giyu over allowing Tanjiro and Nezuko to escape, and the two come to blows when she tries to slip free.

The young woman from Final Selection, later named Kanao, catches the fleeing Tanjiro, knocks him out, and pursues Nezuko, who shrinks herself to survive. A Kasugai crow then delivers an order to bring the siblings to headquarters. Tanjiro wakes bound in a garden, surrounded by the Hashira.

This chapter introduces the Kakushi, the support members who handle recovery and cleanup after engagements because most lack the swordsmanship of frontline slayers. It also sets up the trial that follows, ending on the reveal that Tanjiro now stands before the Corps' nine elite warriors.

The installment corresponds to Episode 21 and opens Volume 6 of the manga.