User blog comment:Kaido King of the Beasts/Chapter 840: My Worthless Son/@comment-29588340-20160922135512

I have a theory that the 5 sibblings' genes were probably modified and mixed with a small percentage of genes coming from the devil fruit users or probably a sample of a piece of devil fruit is taken and infused in their genes. And these are the possible devil fruit users: Enel, Magelan, Daz Bonez (Mr. 1), Ace, and Binz.