Board Thread:General Discussion/@comment-31059495-20170413110502/@comment-4197234-20170415055147

I mentioned this in another thread but I personally hold the belief that, unless it directly contradicts the novels, I consider the event canon. going back to the rio events, even though it only appeared in the anime, I consider the incident with rio and izaya canon to the novels as I don't believe it takes away from anything and even adds some backstory to a relatively minor character.

That line of thinking can get very confusing, however so if you're the kind of person who has to get every detail right to the last degree, then it may be easier to just consider the two to be seperate continuities.