|Rōmaji||Eiyu no Mizu|
|Literal English||Hero Water|
|Novel||Naruto: Mission: Protect The Waterfall Village (novel)|
|OVA||Mission: Protect the Waterfall Village!|
|Appears in||Anime, Novel|
The Hero Water (英雄の水, Eiyu no Mizu) is a specialised liquid from Takigakure. It is produced once every one hundred years from the giant tree that hides the village.
By drinking the water, it allows a ninja to have at least a ten-fold increase in chakra for a short period of time. The chakra increase was so potent that, as Suien demonstrated, the user can create a chakra shield to deflect kunai, similar to the Eight Trigrams Palms Revolving Heaven.