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Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
As a matter of fact, there are only a handful of cases where the souls of the dead shinobi manage to break free, with Sasori and Haku being the most notable ones.
Source: https://gamerant.com/naruto-unsung-heroes-4th-great-ninja-war-sealing-team/
Haku could rapidly travel between those mirrors and throw needles at his enemies to wear them down in a one-sided fight that not even Sasuke Uchiha could win.
If it wasn't for Kakashi, they wouldn't even have had a fighting chance against Zabuza, especially with Haku in the equation.
Source: https://www.cbr.com/naruto-sasuke-rivalry-explained/
In that final fight, fans saw Zabuza's hidden good side, such as his bond to Haku, which was touching.