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Gutsu Gutsu no Mi
Gutsu Gutsu no Mi Infobox.png
Japanese Name: グツグツの実
Romanized Name: Gutsu Gutsu no Mi
English Name: Smelt-Smelt Fruit
Meaning: Sound of boiling
Usage Debut: Episode 746
Type: Paramecia
User: Bill

The Gutsu Gutsu no Mi is a non-canon Paramecia-type Devil Fruit that allows the user to turn their body into a blast furnace and melt metals inside it, making them a Blast Furnace Human (溶鉱炉人間 Yōkōro Ningen) . It was eaten by Bill.


By eating ore, Bill can send it into a blast furnace inside his body, which will make his body glow orange and exude steam. He brings out the ore to use for whatever fits the situation, such as weapons for when he is attacking. He also sometimes attacks with molten ore. Additionally, he uses his fruit to also increase the military strength of his entire crew, giving all of them weapons.


The main strength of this fruit is the ability to solidify the molten ore in the user's body and shape it into anything the user desires, including metal weapons. The user is also able to launch the extremely hot molten ore out of their body to attack others. They can also turn people into solid silver statues. They are also granted immunity from being burned by the molten ore and the initially hot metal it is formed into.


It seems that the user requires a supply of ore inside them in order to be able to form weapons, forcing them to constantly consume ore in order to use the fruit, although the more ore is consumed, the more powerful is the user, to the point Bill bloated to huge proportions after eating too much ore.[3]