Kamui (2009)

If you are born a ninja, you die as a ninja. You do not trust, and you do not love. On the run, Kamui is a ninja in search of freedom. His journey leads him to an old fisherman's village where he gradually learns to love. But there are others pursuing him - ninjas of his own clan, pirates, shark hunters and a captain of manipulation hatching a plan with Kamui as the prey.