Like all Zoan Devil Fruit's, this Devil Fruit gived the user a upgrade on there physical abilities; strenght, speed, durability and etc. Also, the fruit will put cuff's on the arm's of the user, (similair to how a prisoner would have maniculs on while in prison), while having small chain's attached to them. "Hot" being the very flames that make Hell so feared. This "Hellfire", if you call it, is a mystical fire that will burn anything the user want's to; be it physical, spiritual or magical in origin.