The Swamp-Swamp Fruit is a Logia-type Devil Fruit that allows the user to become the element of "swamp" making the user a Swamp Human. It was eaten by Caribou.



  • "Numa" (沼?) means "swamp" or "bog".

Strengths and WeaknessesEdit

With the Swamp-Swamp Fruit, Caribou can create bottomless swamps which are impossible to escape from. If someone is caught by the swamp created by Caribou, they will sink more if they struggle. The swamp also serves as a storage space, allowing Caribou to store an infinite amount of whatever he has captured inside his body. He is able to keep creatures capable of breathing water, such as mermaids, alive while they are in his swamp. Whether he can keep creatures only capable of breathing air alive in his swamp is unknown, but he can use the swamp to drown his opponents if he wishes to

Like most of the other Logia users, Caribou cannot be hit or sliced as his element is intangible, and any attacks will be absorbed into his body harmlessly. Though more like Marshall D. Teach, Caribou cannot allow the attacks to phase through his body; instead, it must be absorbed. The thick liquid produced by the fruit's power is mud which is a half-water and half-earth element, found near bogs, with Franky even describing it as "mud-like".

The major weakness of this fruit is that the user cannot transform back to their normal form if they are confined in a space that their normal body cannot fit in. Due to this weakness, Franky was able to capture and seal Caribou in a barrel easily. Also this fruit has yet to demonstrate offensive capabilities other than 'drowning' opponents into the swamp. Also, since his mud is just basically earth that's mixed with water, this leaves him vulnerable to individuals who can manipulate water, such as Jimbei. Other than that the user is affected by the standard Devil Fruit weaknesses.


With his Devil Fruit powers, Caribou can create bottomless swamps by turning his lower body into a swamp. Via this transformation, he can capture living beings like he did when he used his powers to capture some mermaids. Should his targets prove to be too large to be captured by normal size, Caribou can expand his body to increase the surface area, and wrap around the target in question to drag them in faster as he did so with Shirahoshi. His "bottomless" swamp can also be used as a storage space. In fact, his fighting style consists of storing several weapons like Gatling guns and scythes inside his body.

Caribou can also use it to suffocate his opponents by encasing their head in a sphere of swamp. Like other Logia users, he can evade (or in his case, absorb) attacks by turning his body into the related element, which is in this case, swamp. However, his over-reliance on this defense, which he incorrectly believed to be invincible, led him to have little natural defensive power when his ability was dampened by attacks imbued with Armament Haki.

By becoming a swamp (or rather, a puddle of mud), Caribou can extend parts of his body, such as his ear, for eavesdropping while hanging on the side of a building to avoid detection.


  • This fruit's power that revolves around absorption, as well as granting the user an infinite space within the body, makes it very similar to the Dark-Dark Fruit.
  • The Swamp-Swamp is the first Logia-type and the first new Devil Fruit in general revealed after the timeskip.