is jujutsu kaisen episode 46 filler?

Mahito deploys a 0.2-second Domain Expansion to land a guaranteed Idle Transfiguration on Todo's left hand — the hand he needs for Boogie Woogie. The technique begins to die.

Todo fights on with a mangled hand, landing one final clap that gives Yuji the positioning for a devastating hit. Boogie Woogie dies.

Todo loses his technique permanently. Mahito is cornered — and then Kenjaku appears, wearing Geto's body, and asks: 'Shall I save you?' He absorbs Mahito through Maximum: Uzumaki.

The cursed spirit born from human malice becomes fuel for the plan to reshape humanity.