|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 from Takigakure and it allows a ninja to have at least a ten-fold increase in chakra for a short period of time. In exchange for this power, the water shortens the user's life span proportional by the number of times his chakra increased, as Shibuki's father died from the side-effects. 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.
The water is produced once every one hundred years from the giant tree that hides the village.