From Viz:

Vol 1: Innocent Heart, Demonic Blood
Naruto, a born troublemaker, has the worst grades of anyone at Ninja Academy. But he has big dreams and swears that someday he'll be a respected warrior and the leader of his village! After barely graduating from the academy, Naruto officially becomes a full-fledged ninja and starts accepting assignments. He's thrilled about embarking on his first big job, a bodyguard mission, but his enthusiasm soon turns to panic when his group is ambushed by the powerful, vicious Demon Brothers. Can Naruto triumph over these fearsome foes?

Based on the Land of Waves arc. Vol 1-4 of Naruto.

Vol 2: Mission: Protect the Waterfall Village!
Naruto, a born troublemaker, has the worst grades of anyone at Ninja Academy. But he has big dreams and swears that someday he'll be a respected warrior and the leader of his village! After barely graduating from the academy, Naruto officially becomes a full-fledged ninja and starts accepting assignments. He's thrilled about embarking on his first big job, a bodyguard mission, but his enthusiasm soon turns to panic when his group is ambushed by the powerful, vicious Demon Brothers. Can Naruto triumph over these fearsome foes?