Chiro Chiro no Mi

The Kan Kan no Mi (Sizzle Sizzle Fruit) is a Paramecia-type Devil Fruit that turns the consumer's body permanently into starlite. Thus making the consumer a Dan'netsu Ningen (Heat Insulation Human). It was eaten by Ignis D. Hiro.

Advantages
The Kan Kan no Mi bestows upon its consumer an absolute immunity towards heat even to the utmost extreme, electricity and blunt attacks. The consumer insulates electricity and heat based attacks, allowing them to attack people like pyromaniacs.

Disadvantages
The user can still be hit by sharp objects suck as blades, and Haki can negate the immunity to blunt attacks. Besides this, the consumer is prone to the standard devil fruit weaknesses.

Trivia

 * kankan is a Japanese Onomatopoeia for the sound of fire sizzling.