- Anime: KIZNAIVER
- Role: Main character
- Japanese name: 新山 仁子
Niko Niiyama merch
- Niko Niiyama figures on Amazon
- Niko Niiyama manga on Amazon
- Niko Niiyama clothing on Amazon
- Niko Niiyama posters on Amazon
- Niko Niiyama plush on Amazon
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