What character had absolutely no relevance to the plot?

[YellowFang]

Hagoromo

 

[Skull Knight]

Kaguya

 

[Darth AniCetuS]

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:sdo3:

 

[take it easy]

Sakura. She did nothing useful that other med ninja cant.

 

[lndra]

Iruka was pretty useless too, sadly.