Naruto: Mission: Protect The Waterfall Village! (novel)

is a fourteen chapter light novel adaption written by Masatoshi Kusakabe. It is also an OVA anime adaption of Mission: Protect the Waterfall Village!.

Blurb
"Naruto and the gang return home after a stint protecting Shibuki, the leader of Takigakure. But there's danger back in Konoha. Sasuke and Sakura are quickly captured and the tow-headed ninja-wannabe finds himself in a desperate situation. Turning to Shibuki for help, Naruto discovers the revered leader is actually a coward and false hero. Alone, Naruto must protect his home, his friends and the Takigakure's Hero Water."

Trivia
The whole light novel book is heavily altered rather than the anime OVA adaption, such as having:


 * Team Suien is revealed to have different moves rather than the single one they used in the anime OVA adaption.


 * Senji, an extra character that supports, helps and protects Shibuki and his villagers.


 * Three summoning animals were used in the light novel adaption and were not seen and used in the anime OVA adaption.


 * Senji fighting against Suien instead of Shibuki.


 * Suien's three amegakure partners are revealed to be alive (and captured by Kakashi) at the end of the light novel adaption. Having survived Suien's summoning animal's attack.


 * Team Suien had faced off against Kakashi.