Board Thread:Theories and Speculation/@comment-810492-20170517190024/@comment-24142271-20170517200557

While i don't believe this spectre to have anything to do with Zero Tails, there are things taken from "non-canon" sources and put into the manga. Raiga, Matsu and Nishi off the top of my head. It shouldn't be too hard to believe filler can be added to filler.