Thank You, Tokito

The 48th anime episode and fourth of the third season covers chapters 108 through 112, taking its name from chapter 108. After cutting down the goldfish demon menacing Kotetsu, Muichiro is begged by the boy to save Kanamori and Haganezuka rather than rush back to the village, and the words of Kagaya Ubuyashiki convince him to do so. Elsewhere, Tanjiro presses a brutal solo fight against the winged manifestation of joy, while Nezuko and a wounded Genya struggle against the demons of pleasure, anger, and sorrow. The four split forms share their strength and prove nearly impossible to put down.

Muichiro's choice

Muichiro destroys the vessel mounted on the goldfish creature, confirming it was created through a Blood Demon Art. Recalling his leader's faith in him, he hoists Kotetsu onto his shoulder and speeds off to reach Kozo and Hotaru, trusting that saving them will not doom the settlement.

The shared power

Tanjiro notices each demon carries an emotion etched on its tongue and that wounding one weakens them all. He endures a relentless aerial assault from the joy manifestation, repeatedly cutting through its head only to watch it regrow.

Buried beneath the ruins

Genya recites a sutra and severs Sekido's hand, while Nezuko burns Karaku with Exploding Blood and turns the demon's own fan against him. Tanjiro uses the winged demon's momentum to crash back to his siblings, but Karaku levels the structure with a downburst, dropping the unconscious group through the floor as Mitsuri hurries to the village under attack.

The two eyecatchers recreate the covers of chapters 109 and 110. The anime expands several beats from the source: Muichiro watches the fish demon heal before striking the vase, the winged demon slashes Tanjiro six separate times before he retaliates rather than once, and Genya taunts the sorrow manifestation by declaring he alone will be its opponent. The closing sequence also shows several rampaging fish demons in the village where the manga depicts only one.