Impel Down

**Impel Down** (インペルダウン, *Inperu Daun*), also known as the **Underwater Prison** (海底監獄, *Kaitei Kangoku*) or the **Great Prison** (大監獄, *Dai Kangoku*), is a location in the *One Piece* series. It is a government-controlled stronghold in Paradise together with Navy Headquarters and formerly, Enies Lobby. It is the World Government's maximum-security prison for the most dangerous criminals and pirates. It is located underwater in the middle of the Calm Belt.

Impel Down is the main setting of the *Impel Down Arc*.

"*.*"

—Impel Down.

## General Layout

Impel Down is a large submerged tower-like structure whose foundation is at the very bottom of the sea bed. Due to it being built within the Calm Belt, the entire structure is constantly surrounded by gigantic Neptunians swimming below the water. Along with these beasts, the prison is guarded by a force of Navy battleships.

Within the dark confines of the prison are various cells and torture chambers that are used for the prisoners. The cells are all made from Sea-Prism Stone to keep those with Devil Fruit powers from escaping. The torture chambers are used for all sorts of brutal, unspeakable acts. Among these include continuous whipping, brutal beating to death, boiling cauldrons for burning and drowning, and spiked pits used for impaling.

The prison is carefully monitored all around by a Surveillance Transponder Snail. Tiny versions of them are found in specific locations throughout Impel Down. Whatever they see is transferred to a larger version that sends video feeds to monitors connected to it, allowing the guards to keep surveillance. Each of the smaller versions has an alarm beeper connected to the shells. The large Surveillance Transponder Snail is kept in a monitor room somewhere within the fortress.

There is also what appears to be a medical laboratory stationed somewhere within the great jail, with doctors and a variety of medical equipment for immediate treatments of anyone within the prison, both prisoner and staff alike. However, the doctors seem to have a limit, as they cannot produce a cure for an accumulation of various poisons.

The generator room of the entire prison is located on the first floor, before Level 1, and as are the controls to open the Gates of Justice.

## Levels

A prisoner's assigned level is usually determined by the bounty value on his or her head. Exceptions can be made however, such as Crocodile whose bounty was removed a long time ago and Bentham, when the Government acknowledges their strength is obviously superior to their bounties.

Along with various cells to keep inmates, each level possesses a unique form of torture. Because of these unspeakable acts being performed, each level is given the title of hell. With each descending level, the tortures worsen.

### Level 1: Crimson Hell

**Crimson Hell** (紅蓮地獄, *Guren Jigoku*) is the first level of Impel Down in which prisoners are kept. The level houses the least-infamous prisoners and contains a large forest of red trees. The leaves of the trees, known as **Bladed Trees** (剣樹, *Kenju*), are as sharp as blades, while the grass on the floor, the **Needle Grass** (針々草, *Haribarisō*), is as spiky as needles. Here, prisoners are forced to run through the forest while being chased by poisonous spiders and guards to experience all the pain from being cut from all directions. As a consequence of prisoners being forced through this forest, it is soaked in blood.

Deep within the forest is a hole that leads to Level 2. For those who do not wish to live through the pain of being cut any longer, they were given the option of jumping down the hole to Level 2, which contains an even more terrifying hell that nobody is willing to risk. The security here seems to be somewhat lax, as a prisoner has managed to sneak a Black Transponder Snail into his cell, eavesdropping on what is happening around the fortress.

Buggy was kept here prior to his escape due to the guards not knowing he was a Devil Fruit user, much less one whose power rendered him completely impervious to this type of torture.

### Level 2: Wild Beast Hell

**Wild Beast Hell** (猛獣地獄, *Mōjū Jigoku*) is the second level of Impel Down in which prisoners are kept. Buggy commented that every prisoner from level 2 that escaped with him holds a bounty higher than his own (15,000,000 berries). It contains various wild beasts of sorts. The beasts kept here include Puzzle Scorpions and Manticores. Puzzle Scorpions are large poisonous insects that can join together to become giant centipedes. Manticores are man-eating human faced lions that will devour everything from their prey including the bones. Their human faces allow them to speak. However, they can only imitate what they hear like parrots as they do not understand what they are actually speaking. The words they speak are mostly things they heard from the prisoners so some of the things that they say are completely out of place. Among these regular-sized beasts kept here are also two gigantic beasts, the Basilisk and the Sphinx.

The **Basilisk** is a gigantic snake born from a chicken. It is a feathered mutant that possesses both snake and chicken traits. It is extremely strong and it gave Luffy and Buggy a good chase until it was downed with one blow of Gear Third from Luffy. Though formidable, the Basilisk is not the most powerful beast in the level. It is considered to be the "second-in-command".

The **Sphinx** is a gigantic human faced feathered lion. Significantly larger than the Basilisk and much more fearsome than the other beasts, it is considered the "boss" of the level and is charged with guarding the stairway that leads out of the level. It is so fearsome that the prisoners kept in the level, and even the other beasts hide from it. Like the Manticores, it is capable of imitated speech. It randomly says the names of types of noodles and apparently understands the concept of giving thanks before meals. It is such a strong beast that it is capable of breaking the floor beneath it if it hits it enough times.

With these various beasts, prisoners kept here are forced to be chased by them through the corridors of the level. Because of the fearsome danger, prisoners often either lose the will to go on, or refuse to escape even when their cells are unlocked.

Galdino was kept here prior to being set free by Luffy and Buggy. After both the Basilisk and the Sphinx were defeated, and along with all the prison doors being unlocked, there was a mass riot in the level caused by Luffy and his companions. The riot however was quelled down by Saldeath and his Blue Gorillas. There was a second riot that occurred shortly after the previous riot but was quelled after Magellan apparently decimated almost all the prisoners on the level and blocked all the entrances and exits. However, as Magellan became occupied with Luffy's breakout army, the rioters of Level 2 once again became active.

### Level 3: Starvation Hell

**Starvation Hell** (飢餓地獄, *Kiga Jigoku*) is the third level of Impel Down in which prisoners are kept. Most of the prisoners kept here are pirates who have a bounty of 50,000,000 berries or higher. On this level, prisoners feel the heat rising up from Level 4 and are given precious little food and water to keep them in a near death state. They are reduced to the point where, by merely looking at them, one cannot tell that they were ever once frightening criminals. Also while the temperature here is nothing compared to level below, it is intense enough to cause overwhelming dryness, resulting in Level 3's somewhat desert-like terrain. Bentham was kept here, despite his bounty being only 32,000,000 berries.

In the middle of the level is a large hole going directly to Level 4 down below. This, combined with a gigantic fan directly above the hole, serves as the main ventilation system to redirect the smoke produced from below. Level 4 can be reached through this hole; however, to travel down it holds a risk of death or scalding by the fire and heat from the floor below.

### Level 4: Blazing Hell

**Blazing Hell** (焦熱地獄, *Shōnetsu Jigoku*) is the fourth level of Impel Down in which prisoners are kept. At this level, a pool lies filled with boiling blood heated by a raging fire making it extremely hot. The heat caused by this is so intense that it also heats up the level directly above it. If one tries to jump down to this level from Level 3 using the large hole used for ventilation above but do not land in a safe place, then they will die.

Prisoners from other levels are regularly tortured here. The most prevalent form of torture however is being thrown into the gigantic pot of boiling blood in the middle of the level. Other tortures involve prisoners being hung from ropes around their stomachs en masse and being dangled over the raging flames throughout the level, and being put to back-breaking hard labor by suppling giant logs of firewood to keep the flames going. Guards on this level must don protective gear to avoid being hurt by the intense heat, as it is strong enough to sear bared flesh.

Daz Bones was kept here, though he was shown to be unfazed by the heat of this level while being placed into hard labor. He also saw Luffy and Magellan's battle while in his cell.

Magellan, the warden of Impel Down, stays here. His office contains a lift, which can take several people to all the levels throughout the fortress, bypassing the stairs. This is also where the kitchen of the prison is located, right next to Magellan's office. Luffy's battle with Magellan was fought here prior to him being completely poisoned and captured.

### Level 5: Freezing Hell

**Freezing Hell** (極寒地獄, *Gokkan Jigoku*) is the fifth level of Impel Down in which prisoners are kept. This is the level where criminals with bounties of 100,000,000 berries and over are kept. In stark contrast to the level above it, the entire level here is a giant freezer. The level is so cold that not only do the prisoners kept here either freeze to death or lose pieces of their flesh from severe frostbite, but the food given to them is frozen to the level of being virtually inedible. Due to the extreme cold, Transponder Snail do not function in this level, thus cutting off both contact and surveillance, except on the locations localized around the entrances that connects Level 5 to the previous and next levels. Along with the severe cold, the level is inhabited by wolves. These wolves roam around the level like the beasts of Level 2, where they were originally stationed at. However, they proved to be too brutal to be in Level 2 as they also hunted the other beasts as well, including the Basilisk and the Sphinx.

Along with the bitter cold of the level, there seems to be a occurrence of prisoners mysteriously disappearing as well. Prisoners who are incapable of moving by themselves have been disappearing without a trace. Because of this, the Impel Down staff and the prisoners call this phenomenon, the "demoning away." The superstition is that the missing prisoners have been actually pulled away by demons to the Gates of Hell itself. The belief of this superstition has been carefully kept within level 5 so that no inmates from the upper levels were aware about it prior to Bentham (disguised as Hannyabal), Buggy, and Galdino descending down to it where they were informed by the guards. Among these missing prisoners is Emporio Ivankov, the "Queen" of the Queers. He was imprisoned here until he mysteriously disappeared from his cell. Since then, he was rumored to be living in an abandoned guard's office deep within a forest situated in the level.

Luffy was transferred into the central tower of this floor after his loss against Magellan, with the effects of Magellan's poison whittling away his vitality, until released by Bentham, hoping to find a cure.

#### Level 5.5: Newkama Land

**Newkama Land** (ニューカマーランド, *Nyūkamā Rando*), Known as the The "Prisoners' Secret Flower Garden", is a hidden sub level of Freezing Hell, and is where all the prisoners who have been supposedly "demoned away" have gone to. The secret area is located inside a rock between Levels 5 and 6. It was carved out long ago by a prisoner with a tunneling Devil Fruit power, and is a secret location unknown by the jailers. It is ruled by the "Queen" Emporio Ivankov, and it is called the *Okama Paradise* where all the okama and prisoners party and have fun all the time. It has been described by Ivankov as a "paradise within hell", and true enough, not one inmate from this hidden level is inclined at all to escape the jail as a result. However, since the level itself is hidden, the inhabitants seem to abide by very strict rules that prohibit them from actively interacting with the other levels, at least not without covert movement. Still, they do not seem to discriminate should new arrivals find their way here, as seen by the warm welcome they gave to Bon Clay.

One of its main rooms is a combination of a sit-down cafe and a discotheque, with the main attraction being a cabaret stage where Emporio Ivankov and his followers perform. Apparently, there are also secret entrances existing from the other levels (save for Level 6) that leads directly into this hidden level which the inhabitants can use to their advantage in procuring any necessary supplies. The level also has a Surveillance Transponder Snail that captures feeds from Impel Down's main surveillance system so the prisoners can see what is going on from all levels in the prison. They also steal newspapers from the prison's garbage cans to stay informed about current events.

Following the mass breakout of Impel Down, the residents of Newkama Land participated in the Whitebeard War and left for Kamabakka Kingdom, leaving Level 5.5 empty. However after two years, many prisoners are shown occupying it again, the only real difference being that it is now ruled by "Queen" Bentham.

Its name is a pun on "new comer" and queers, and refers to the queers who are completely able to change genders thanks to Ivankov's powers. In Japan, a "New Half" is a man who undergoes a "sex-change" operation.

### Level 6: Eternal Hell

**Eternal Hell** (無限地獄, *Mugen Jigoku*) is the lowest level of Impel Down. It is where prisoners who are insanely powerful, have caused crimes extremely atrocious, and/or whose mere existences have become a major threat to the World Government itself are kept. Sengoku said even a single Level Six prisoner lurking in a remote country could be an incredible danger to the public. The prisoners on this level have been given either the death penalty or a life sentence. They are basically "erased" from history.

Most high-ranking officers of Impel Down tend to avoid this level because of the danger these criminals pose, but will visit it if the need arises. The chief warden of Impel Down also has the authority to execute prisoners kept here on the spot if they begin acting up, and may do so at their own discretion. When he was chief warden, Magellan made no qualms about demonstrating this power by dousing prisoners with his deadly **Hydra** attack when they openly mocked his authority.

Ace was kept here on death row, awaiting his execution. Because most people dismiss Level 6 as just a rumor (until its actual discovery), Ace was believed to be on Level 5 by other prisoners. Jimbei was also placed on this floor, and was being kept in the same cell as Ace. Though the prisoners on this floor are either jailed for the rest of their lives or until their execution day arrives, Jimbei was only given a temporary sentence for refusing to fight against Whitebeard. Crocodile is also being kept here in a cell next to theirs. Near them are various other legendary pirates who hold deep grudges against Whitebeard, some of which are several imprisoned giants.

Kept alongside the prisoners was the former Head Jailer Shiryu. Because he constantly massacred prisoners, he was deemed to be a menace even within Impel Down, and became too dangerous to be kept anywhere else in the prison. For abusing his powers, he was sentenced to Level 6, until his death sentence. Interestingly enough, even though Level 6 is considered the worst hell, prisoners kept here are never actually tortured (though it was shown that Minotaurus occasionally showed up and tormented the prisoners with its club). It simply seems to be a holding cell for life or until an execution and prisoners do not have to endure terrible conditions (burning heat, freezing cold, etc.) unlike the higher floors. However, as seen with Jimbei and Crocodile as they moved through the other levels and are unaffected by those conditions, the inhabitants of this level may simply be too powerful to be affected by torture. Although, solitary imprisonment has been proven to be an effective torture in the real world, where even Shiryu stated that the boredom made him wish for death.

## Entering Impel Down

Impel Down is located in the middle of the Calm Belt, where Neptunians thrive, making entrance difficult. The only way to get there with the greatest of ease is to use the Tub Current, a water current accessible by going through the Gates of Justice located at either the Navy Headquarters or Enies Lobby. Also, the only way to safely get to the prison is to use one of the Sea-Prism Stone lined Marine battleships, as the entire place is surrounded by Sea Kings.

Because of its brutal nature and being renowned for being inescapable since Shiki, almost no person wishes to ever go there. The only known exceptions are Monkey D. Luffy, Daz Bones, and Crocodile. Jimbei believed that one or two lives should not be enough to make anyone want to venture into the prison, seeing Luffy's infiltration to rescue one person as incredible.

Usually, Impel Down is a hell-fortress with maximum defenses, making intrusion and breaking-out by criminals impossible. However, Luffy made the record of being the first to break-in, tarnishing that perfect record since Shiki's breakout twenty years ago. The Blackbeard Pirates are the second group of people to ever instigate a break-in, and they did so with less effort than Luffy, not having bothered to try to avoid detection.

### Arrival and Sterilization

When prisoners arrive in Impel Down, they are put in boiling water to disinfect and sterilize them. This is ritualistically referred to as "baptizing" them. In the Viz Manga translation, it is instead said that only the prisoners' clothes are thrown into the boiling water.

While most have screamed in pain due to the extreme heat, only a few prisoners have been known to take the sterilization without flinching even one bit. These prisoners include Portgaz D. Ace, Jimbei, and Crocodile.

Monkey D. Luffy is the only known prisoner to not have gone through this ritual, being an intruder who was supposed to die in twenty-four hours from poison.

### Change of Clothing

Most prisoners then have their clothes taken before they are given a striped black and white pair of shirt and trousers. However, they are permitted to keep certain articles of clothing and prosthetics, such as Galdino's glasses, and Crocodile's Hook.

Exceptions to this rule are prisoners who were not meant to stay long before death. These include Portgaz D. Ace, Monkey D. Luffy, and Shiryu. Jimbei was also allowed to keep his own clothing, as he was meant to be kept there until he was willing to cooperate with the World Government.

The residents of New Kama Land seem to have managed to retrieve their old clothes after escaping from their cells. Similarly, Crocodile seems to have somehow retrieved clothing similar to his old attire, including a long fur coat, almost immediately after escaping from his cell. However, it was revealed by Oda as well in the anime that Crocodile got his outfit back from New Kama Land.

### Level Assignment and Life of Torture

After sterilization and a change of clothing, the prisoners are then placed in one of the six known levels of Impel Down, based on their crimes and strength. The more heinous or powerful a prisoner is, the lower the level they will be placed. From then on, the prisoners are tortured in various ways, depending on their assigned levels, with most of them supposedly having no chance of ever leaving alive.

### Visits

Whether outside people are permitted to visit the prisoners is unknown. Government agents and Marines have the authority to do so, but they would need permission from their superiors.

As Impel Down is a World Government facility, it is obvious pirates cannot enter without being branded as intruders and criminals. The Seven Warlords of the Sea are allowed, at the permission of the Government. Even so, they would be subjected to a full body search, then be forced to wear Sea-Prism Stone-cuffs, for safety measures. Without permission, such as Blackbeard and his crew, they would be considered as traitors.

### Leaving Impel Down

Aside from visitors and Government officials, most people who enter Impel Down never leave there alive. The only prisoners ever allowed to leave are those who are held until their death penalty that takes place outside of the fortress (e.g. Portgaz D. Ace), those who are meant to serve temporary sentence (e.g. Jimbei) and those who are released for special reasons (e.g. Arlong).

Breakout of Impel Down is virtually impossible, due to the defenses from the extremely powerful traps and guards of the place, with the Neptunian-infested Calm Belt being its ultimate barricade. However, Shiki made the record of being the first person to break-out of the prison twenty years ago due to a mistake made by the Navy. Monkey D. Luffy became the second to do so.

Aside from his own escape, Luffy is also responsible for leading the very first mass-riot within the jail. Along with Emporio Ivankov, Inazuma, Buggy, Daz Bones, Crocodile, Jimbei, Galdino, and 233 other prisoners, he is also responsible for the first-ever mass breakout in Impel Down's history. Bentham intentionally stayed behind, sacrificing himself to let the others complete their escape. It is unknown how many prisoners died during this riot, mostly from the Jailer Beasts and Magellan's poison.

Following this second breakout, the Blackbeard Pirates had freed several Level 6 prisoners for recruitment into their crew, leading to even more prisoners leaving.

## Gallery

### Inmates

#### Level 5: Freezing Hell

Monkey D. Luffy
(Escaped)

#### Level 6: Eternal Hell

Portgaz D. Ace
(Transferred to Navyford)Jimbei
(Escaped)Sir Crocodile/Mr. 0
(Escaped)Jail Manager Shiryu
(Escaped)Patrick Redfield
(Escaped)
#### Unknown Level Prisoners

Arlong
(Released)
## History

### Past

#### Only Escape and Past Horrible Reputation

Twenty-two years before the start of the series, Shiki the Golden Lion became the first prisoner to escape Impel Down due to a mistake made by the Navy and by cutting off his own chained up legs. Ever since then, no prisoner had ever made a successful break-out or break-in until the eve of the Battle of Navyford.

Over the years, many prisoners of Level 5 would disappear for no apparent reason. The guards dubbed this phenomenon as "demoning" away, and thought such prisoners were gone forever. In truth, they were rescued from their cells by the Revolutionaries' commander Emporio Ivankov, who was also imprisoned in Level 5, and they all stayed at the secret Level 5.5, a space dug out by a past prisoner with a tunneling Devil Fruit power.

Head Jailer Shiryu of the Rain killed many prisoners within the walls of the prison for his sheer pleasure, and was deemed a menace. He was put on death row, and was held in Level 6 until his sentence would be carried out.

## Synopsis

### Water 7 Saga

#### Enies Lobby Arc

Impel Down was briefly mentioned by Nami as a place that once a person goes in will never come out. She thought Robin was going there but it turned out to be wrong. Later in Enies Lobby, Spandam ordered Franky to be sent to Impel Down while Robin was to be sent to the Navy Headquarters.

#### Miss Goldenweek's "Operation: Meet Baroque Works"

After the fall of Baroque Works at Alabasta, Crocodile (Mr. 0), Daz Bones (Mr. 1), Bentham (Mr. 2), and Galdino (Mr. 3), were all eventually transferred from a regular prison to Impel Down for life.

### Thriller Bark Saga

#### Thriller Bark Arc

When Marshall D. Teech captured Portgaz D. Ace to gain the title of Seven Warlords of the Sea, Ace was transferred to Level 6, to be held there until his public execution.

## Notes & Trivia

* The symbol of Impel Down is an overlap of the prison name's initials, "I" and "D".
* Impel Down prisoners are assigned a 4-digit number preceded by a single letter that appears to denote what floor the prisoner is to be held at, starting with E for level 1 and presumably ending with A for Level 5. It is unknown what letter would be given to Level 6 inmates, or if they are even assigned numbers.
* Various influences of "Hell" are present within its walls:
	+ Impel Down seems to be heavily based on how Hell is described in Dante Alighieri's Divine Comedy. Both are level-based, "inescapable" prisons with unique forms of punishment per level, and the lower one traverses, the worse the punishments become.
	+ The description of Mount Purgatory from Purgatorio, the second part of the poem, highly resembles Impel Down's design.
	+ Level 3: Starvation Hell is ironically the third floor, while in Dante Alighieri's hell, its the place where who was damned by the sin of gluttony are punished by "starving to death" inside Cerberus's gullets.
	+ Level 4: Blazing Hell is a typical representation of Hell in cultural and fictional references, with intense flames and heat burning the "sinners" (or in this case, prisoners), while a demonic figure (in this case, the Jailer Beast Minozebra) pushing sinners into the flames. Magellan's residence on this level could refer to this depiction of hell being where the devil resides. This resembles, in Dante's tale, the level Violence where violent people are punished: a lake of boiling blood, where the damned are drowning.
	+ Level 5: Freezing Hell is another thing that is based on Divine Comedy known as Treachery where the most evil figures are punished. In fact, this level is the one where the damned are fraudulent. With the only difference that the Dante's damned are totally frozen into a lake of ice and in the Divine Comedy it is known to be the lowest level of Hell.
	+ A few of the levels of Impel Down facility also seem to resemble Buddhist concepts of hell such as the Crimson Hell which seems based on the "Hell of the Sword Tree and Knife Hill" which also similarly the tortures its victims by forcing them to run upon or impaling them upon trees and hills covered with knives and swords. Also the Four Jailer Beasts seem to resemble the Jailer Beasts Horse Face and Ox Head.
	+ Each of the high ranking staff members seems to have a devil theme in their dress codes, a reflection to how each level of Impel Down is called Hell.
* Newkama Land is a reference to the movie *The Rocky Horror Picture Show*, in which main character Frank N. Furter is a transvestite similar to Newkama inhabitants. In the final scene of the movie, the heroes Brad and Janett surrender to their transsexual feelings in a similar way as Ivankov's candyboys accept their true inner selves.
* Level 5.5 is a pun, as it is pronounced *Go Ten Go*. "Goten" means "Roaring Heaven", and Level 5.5 was portrayed as heavenly.
* Two names, Roche Tomson and George Black were shown on a list of prisoners on Level 5. These prisoners were never seen, and their fates are unknown.
	+ Roche Tomson's name is similar to that of real-life pirate Roche Braziliano, a Dutchman who sailed in Brazil and was noted for his extreme sadism, even amongst other pirates. Also, Braziliano was at one point caught by Spanish forces, as was Tomson by the World Government, only he escaped and eventually disappeared.
	+ Roche Tomson's number on the list of prisoners in Impel Down is 6581.
* The level 6 purpose of erasing a person from history is similar to the damnatio memoriae, a form of punishment in the ancient Rome which had the intent of erasing the memories a person and everything that could carry it to the future generation, effectively erasing the existence of a person from history.