is jujutsu kaisen episode 10 filler?

Junpei and Mahito's relationship deepens as the cursed spirit teaches Junpei about indifference — the philosophy that caring about others is weakness. Nanami tracks Mahito to his underground hideout, leading to their first direct confrontation.

Mahito reveals Idle Transfiguration, reshaping human souls with a casual touch that horrifies even the stoic Nanami. The fight establishes Mahito as something different from other curses — not just powerful, but philosophically dangerous.