User blog comment:Fliu/Chapter 953: Swords and a Fox/@comment-46.246.243.104-20190824070248

The fox has a Devil fruit similar to sengoku.

The same way tony tony ate a df and manage to have human intelect and form thiw also happened to Onimaru.

He ate a Hito Hito model.

And stayed there 13 years collecting swords and spears.

Or maybe the fox ate the fox fox df model one tail and became wiser and has the ability to transform.

like devon haw the 9 tail

or maybe its just magik and that was its owner will for a safer wano.now that its mission is complete the fox will disappear.

Not everything is D.F in the grand line