You may be looking for the very similar Ninja Garb, a thread from The World Ends with You. Ninja Costume is a thread item in NEO: The World Ends with You.
Naruto Ninja Rankings, Explained
Waityou were just in the kitchen. How did you get upstairs so quickly?! It's probably because you're wearing this Women's Silent Ninja Costume!
Women's Silent Ninja Costume
The World Ends with You Costumes
The World Ends with You: Final Remix Neku Sakuraba Cosplay
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Adventure Factory® Kids Costumes and Dress Up Play – Tagged Ninja
Thought Fragments, The World Ends With You
The World Ends with You: Final Remix
Halloween Costume Ideas For Groups From Movies and TV Shows
Neo: The World Ends With You Nagi Cosplay Costume