A Ninja Assassin is a ninja who assassinates other ninja. They first appear in the Grade C Mission "Grandmother's Gift".
In the Grade B Mission "Wind Village Defend", after the main character was asked to head to the Wind Village to defend the village, Ninja Assassins ambushed the character on the way.
- Level 6 - Grandmother's Gift (first appearance)
- Level 35 - Wind Village Defend
- (Rapid fist and kick): Deals damage.
- (Kick): Deals damage.