Board Thread:Naruto Discussions/@comment-33896099-20171207221353

Hello there I am completely new to this site but I was wondering if Guren was canon or not, the reason for me asking this is because I recently got into Naruto and I only just now read that most arcs were filler including the Arc that Guren arrives in. I really did like the arc but that isn't important what is important is that it made me wonder if she was canon or not due to it being a filler arc it might not be canon at all.

could you guys elaborate on this? 