User blog comment:Neowitch/668 - Pet Axolotl/@comment-4812569-20120524000054

Lol looks like Oda has opened a whole new era of speculations >.>. Well anyways, does anyone else think those 'hearts' that he's switching around isn't exactly their heart but their 'personalities'? Smoker switched with Tashigi when Law had already taken his heart.

P.S. When you switch 'personalities', do you retain your devil fruit? or does it still stay in the body?