Agnostic and Atheist, is two different believes, Agnostic is the belief of there is a God but but your are not acknowlegde his presence, but Atheist is the belief of totally there is not a higher being.
naruto shippuden - road to ninja
naruto last word for his alternate world parents, he thanks them for the short time he experienced have a parents even he is not there real son, the last word he says thank for them from his buttom of his heart