Kimetsu No Yaiba Episode 21 -

The arrival of the Hashira shifts the focus to the Demon Slayer Corps rules regarding Tanjiro and Nezuko.

The conflict is halted by a Kasugai Crow delivering orders to take Tanjiro and Nezuko into custody. Kimetsu no Yaiba Episode 21

The episode opens with the final moments of Rui, the Lower Rank Five demon. The arrival of the Hashira shifts the focus

, titled "Against Corps Rules," serves as the emotional conclusion to the Natagumo Mountain Arc, balancing a tragic villain backstory with high-stakes tension between the Hashira . Rui’s Tragic Backstory the Lower Rank Five demon.

Shinobu Kocho attempts to kill Nezuko, but Giyu Tomioka intervenes to protect them, violating the code he previously upheld.