The Kaku Kaku no Mi (核分裂核分裂フルーツ, Fission Fission Fruit) is a Paramecia-type Devil Fruit that grants the user the ability to split atoms, essentially making them a living nuclear weapon and endless energy resource. This fruit allows the user to both create explosions by splitting the atoms of non-living matter (the user splits the atoms of the earth under an enemies feet, causing an explosion) , but also "detonate" parts of their body, causing controlled explosions that vary in strength based on the users desire. This power also renders the user immune to all forms of explosion, including being harmed from their own explosions. Along with the power to cause explosions, the user can also be harnessed as an endless source of renewable nuclear energy, which allows them to power most anything. This fruit was eaten by Katt Lombard, the Second-Mate of The Sweetwater Pirates .

Kaku Kaku no Mi

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Translation: Fission
Meaning: To Split Atoms
English Name: Fission Fission Fruit

Type: Paramecia

Power: Allows the user to create explosions by splitting the atoms of non-living matter (the exception is  the user themselves). Also allows the user to be a natural energy reservoir.

Eaten By: Katt Lombard 

Created By: Happy Meadows


The fruit is a very small grape shaped bundle. The fruit is a crimson red color, with black jagged swirls around each berry. The fruit has a long black stem, which sticks straight up.


The most threatening thing about this fruit is, of course, the users ability to create explosions out of any non-living matter. The user does this by shooting vibration beams (which are harmless in and of themselves) at a surface, causing the atoms to split and explode (the user can control the strength and size of the explosion by altering the force of their vibrations). The user can also vibrate the atoms in their own body, and while punching or kicking someone, they can create miniature explosions upon contact. This ability also renders the user immune to all forms of explosions. The user can also power devices that take nuclear energy.


The downside to this very powerful fruit is a plethora of weaknesses. First off, if the user chooses to detonate parts of their own body, that area will be completely in tact after, but will be accompanied by crippling pain that takes quite a while to heal (rendering them defenseless if they get careless). Also, other than themselves, the user has no effect on the atoms of living matter or gasses, so if the target is in the air, it can be hard for the user to affect them. The user of this fruit is also cripplingly weak to sound or amplification based powers. Because the user of this fruits splits atoms through the usage of vibration beams, any sound or amplification based power can interfere with the users ability to regulate the vibrations they cause the explosions with. If blasted with a sound or amplification based power, the user of the Kaku Kaku no Mi can lose the control of vibrations, causing their own atoms to suddenly split and explode uncontrollably, draining them of energy and potentially injuring those around them. 

Typical Usages / Attacks:Edit

Lectus Explosive ( Explosive Kick ): The user sends a barrage of kicks towards an enemy, and in the process, vibrates their own atoms to create explosions upon contact with the enemy.

Ferrum Explosive ( Explosive Punch ): Same as Lectus, but with punches.

Corporis Explosive ( Explosive Body ): The user entagles the enemy, wrapping around them. The user then detonates their own atoms. This is an extremely powerful attack that is used as a last resort.

Terra Explosive ( Explosive Earth ): The main attack of the user; using vibrations, the user splits the atom of any non-living matter, causing an explosion (which can range in power from feeling like a pin prick, to a full-blown nuclear explosion).

Terra Explosive Flight (Explosive Flight): The user uses Terra Explosive under themselves or an object they are standing on, using the force of the explosion to launch themselves or the object into the air or forward, simulating flight to reach far away enemies. This technique can also be used to stop the user from falling by causing an explosion underneath them and cancel out the force of their fall.

Hand Made Grenade: The user throws a non-organic object towards their opponent and causes it to explode as it comes into contact or the realative area of the enemy.

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Devil Fruits
Paramecia: Akki Akki no Mi  •  Bachi Bachi no Mi  •  Beku Beku no Mi  •  Bendo Bendo Fruit  •  Boo Boo no Mi  •  Boro Boro no Mi  •  Chamu Chamu no Mi  •  Chatto Chatto no Mi  •  Chi Chi no Mi  •  Chikara Chikara no Mi  •  Chuu Chuu no Mi  •  Debu Debu no Mi  •  Den Den no Mi  •  Dendo Dendo no Mi  •  Denwa Denwa no Mi  •  Dorei Dorei no Mi  •  Douka Douka no Mi  •  Eisei Eisei no Mi  •  Fanto Fanto no Mi  •  Fueki Fueki no Mi  •  Fuka Fuka no Mi  •  Furatto Furatto no Mi  •  Futa Futa no Mi  •  Fuun Fuun no Mi  •  Gaki Gaki no Mi  •  Gaku Gaku no Mi  •  Gan Gan no Mi  •  Genso Genso no Mi  •  Gubi Gubi no Mi  •  Hai Hai no Mi  •  Hane Hane no Mi  •  Heki Heki no Mi  •  Henteko Henteko no Mi  •  Hogo Hogo no Mi  •  Hone Hone no Mi  •  Hoshi Hoshi no Mi  •  Hou Hou no Mi  •  Idou Idou no Mi  •  Jigo Jigo no Mi  •  Jokei Jokei no Mi  •  Jūden Jūden no Mi  •  Jūryoku Jūryoku no Mi  •  Kabe Kabe no Mi  •  Kaben Kaben no Mi  •  Kaen Kaen no Mi  •  Kaeru Kaeru no Mi  •  Kai Kai no Mi  •  Kaku Kaku no Mi  •  Kami Kami no Mi (Piracy)  •  Kiba Kiba no Mi  •  Kiha Kiha no Mi  •  Kinu Kinu no Mi  •  Koe Koe no Mi  •  Kokei Kokei no Mi  •  Kon Kon no Mi  •  Kona Kona no Mi  •  Koro Koro no Mi  •  Kou Kou no Mi  •  Kura Kura no Mi  •  Kyofu Kyofu no Mi  •  Kyosei Kyosei no Mi  •  Kyōzō Kyōzō no Mi  •  Mai Mai no Mi  •  Meka Meka no Mi  •  Mesa Mesa no Mi  •  Meta Meta no Mi  •  Mure Mure no Mi  •  Moji Moji no Mi  •  Nagare Nagare no Mi  •  Nendou Nendou no Mi  •  Niko Niko no Mi  •  Nobi Nobi no Mi  •  Nori Nori no Mi  •  Nuki Nuki no Mi  •  Oto Oto no Mi  •  Ryo Ryo no Mi  •  Sai Sai no Mi  •  Shime Shime no Mi  •  Shimi Shimi no Mi  •  Shinki Shinki no Mi  •  Tere Tere no Mi  •  Teri Teri no Mi  •  Tetsu Tetsu no Mi  •  Togu Togu no Mi  •  Toku Toku no Mi  •  Tsuki Tsuki no Mi  •  Tsuku Tsuku no Mi  •  Tsuru Tsuru no Mi  •  Yōkai Yōkai no Mi
Amphibians: Ryo Ryo no Mi, Model: Salamander
Ancient Zoan: Inu Inu no Mi, Model: Dire Wolf
Arthropods: Kumo Kumo no Mi, Model: Scorpion
Birds: Kamo Kamo no Mi, Model: Platypus  •  Tori Tori no Mi, Model: Bald Eagle  •  Tori Tori no Mi, Model: Great Horned Owl  •  Tori Tori no Mi, Model: Hawk  •  Tori Tori no Mi, Model: Penguin  •  Tori Tori no Mi, Model: Pigeon  •  Tori Tori no Mi, Model: Raven
Insect Zoan: Mushi Mushi no Mi, Model: Butterfly  •  Mushi Mushi no Mi, Model: Centipede  •  Mushi Mushi no Mi, Model: Praying Mantis
Mammals: Garou Garou no Mi  •  Gesshi Gesshi no Mi, Model: Squirrel  •  Gesshi Gesshi no Mi, Model: Rat  •  Hito Hito no Mi, Model: Ghost  •  Hito Hito no Mi, Model: Neanderthal  •  Itachi Itachi no Mi, Model: Skunk  •  Kuma Kuma no Mi, Model: Grizzly Bear  •  Kuma Kuma no Mi, Model: Panda  •  Mori Mori no Mi, Model: Silver Haired Bat  •  Mori Mori no Mi, Model: Vampire Bat  •  Neko Neko no Mi, Model: Black Panther  •  Neko Neko no Mi, Model: Cougar  •  Neko Neko no Mi, Model: Housecat  •  Neko Neko no Mi, Model: Lion  •  Neko Neko no Mi, Model: Lion - World Reversion  •  Neko Neko no Mi, Model: Snow Leopard  •  Neko Neko no Mi, Model: Tiger  •  Uma Uma no Mi, Model: Rhinoceros  •  Usagi Usagi no Mi, Model: Rabbit  •  Ushi Ushi no Mi, Model: Bull  •  Ushi Ushi no Mi, Model: Cow  •  Ushi Ushi no Mi, Model: Minotaur  •  Yagi Yagi no Mi, Model: Deer  •  Yuitai Yuitai no Mi, Model: Red Kangaroo
Mythical Zoan: Enma Enma no Mi  •  Feri Feri no Mi  •  Inu Inu no Mi, Model: Hellhound  •  Inu Inu no Mi, Model: Nine-Tailed Fox  •  Ga-go Ga-go no Mi, Model: Chimera  •  Neko Neko no Mi, Model: Manticore  •  Ōkami Ōkami no Mi, Model: Raijū  •  Ryu Ryu no Mi  •  Ryu Ryu no Mi, Model: Steel Dragon  •  Tatsu Tatsu no Mi  •  Tori Tori no Mi, Model: Thunderbird  •  Ryu Ryu no Mi, Model: Ice Dragon
Plants: Koha Koha no Mi, Model: Venus Flytrap
Reptiles: Hebi Hebi no Mi, Model: Indian Cobra  •  Toka Toka no Mi, Model: Chameleon  •  Toka Toka no Mi, Model: Komodo Dragon  •  Wani Wani no Mi, Model: Gharial
Logia: Ama Ama no Mi  •  Baio Baio no Mi  •  Byo Byo no Mi  •  Chikyuu Chikyuu no Mi  •  Chiri Chiri no Mi  •  Chisso Chisso no Mi  •  Furu Furu no Mi  •  Gami Gami no Mi  •  Garasu Garasu no Mi  •  Housha Housha no Mi  •  Iwa Iwa no Mi  •  Kābon Kābon no Mi  •  Kaga Kaga no Mi  •  Kaze Kaze no Mi  •  Kesshō Kesshō no Mi  •  Ketsu Ketsu no Mi  •  Kiri Kiri no Mi  •  Kumo Kumo no Mi  •  Kuraudo Kuraudo no Mi  •  Kusa Kusa no Mi  •  Mizu Mizu no Mi  •  Mizu Mizu no Mi - World Reversion  •  Naiya Naiya no Mi  •  Nendo Nendo no Mi  •  Onibi Onibi no Mi  •  Ougon Ougon no Mi  •  Shio Shio no Mi  •  Seishou Seishou no Mi  •  Taiyo Taiyo no Mi  •  Tsuchi Tsuchi no Mi  •  Zaku Zaku no Mi  •  Zoku Zoku no Mi