Neko Clan

Neko are known for their use of ninkit as fighting companions and are easily identified by their green cat eyes. The members are also given their own feline partner(s) when they reach a certain age. Thereafter, the shinobi and their Cats(s) are practically inseparable. It would seem that due to the bond between a Neko and their feline partner(s), their chakra is allowed to mix, and is shared between them, adding a feral appearance to the human partners, and makes a bond between them that affords them the use of the clan's collaboration jutsu, such as the Jungle Cat Frenzy Jutsu.