Material or work expressed by creators are usually considered canon, I can't go against his work specially with him being the creator like who or what gives me the right to go against it?Because he didn't expressly say it was, to my knowledge. He's behind Road to Ninja, is the movie now canon as well? Are we acknowledging Menma to be an actual character in the Narutoverse? @The Bold, yeah, that's a plot hole. What UNSR did was just throw away entire points made in the manga, not to mention it isn't material from the manga. Giving it far less weight.