This is an unique ability of Gyūki that allows it to produce ink. Though Gyūki is the sole inheritor of the ability, it can be passed on to its jinchūriki.
Jinchūriki Usage[]
- Killer B has made use of the ink by ejecting it from his mouth to blind an opponent or to create ink clones that can be used to seal targets. Killer B has also made a more practical use of the ink by placing some of it on his finger to use as a makeshift pencil.
- Naruto Uzumaki has made use of the ink by mixing it into his Wind Release: Rasenshuriken while in Six Paths Sage Mode. Whether the ink is ejected from his mouth or formed from thin air is unknown.
