Muichiro rescues Kotetsu who is being attacked by a goldfish demon; Nezuko and Genya face off against demons; Separated from the others, Tanjiro fights a battle with a demon marked with the word 'Joy'.

Muichiro is trapped in water by Gyokko's Blood Demon Art. Tanjiro and and his comrades have successfully severed the necks off the four demons, but they realize that they cannot be defeated this way.