Board Thread:General Discussion/@comment-9307023-20200720040859/@comment-44360626-20200815145142

As far as I know neither movie nor filler creators did that. And certainly not to the extent Kubo was involved in the novels. They are based on all information Kubo had provided and the novel writers admitted that they had to limit their own creative freedom and needed tons of information from Kubo. Kubo also acknowledged the novels in Bleach Jet and treated them there as canon.