Nega-Suu | ||
---|---|---|
Gallery | Quotes | Relationship | ||
Physical Appearance | ||
Age | ??? | |
Monster Species | Black Slime | |
Gender | Unknown, if she even has any; (referred to by other with female or possibly non-binary pronouns) | |
Height | Dependent On Water[1] | |
Weight | Dependent On Water[1] | |
B-W-H | Dependent On Water[1] | |
Monster Profile | ||
Occupation | None | |
Relatives | *Hot Spring Slimes (creations/"childrens")[2] | |
Media Debut | ||
Manga | Chapter 51 |
Nega-Suu is a giant Black Slime that stowed away aboard a cargo container ship to Japan. Upon discovery, the President of the Black Lily Innovations Research Laboratory attempted to transport her to his facilities without the government's notice but a chance encounter with Suu saw Nega-Suu escape her transport truck and enter the water canals around Tokyo. An aggressive and stronger slime, Nega-Suu found Suu's unique experiences desirable and intended to draw Suu to her and absorb the smaller slime's body into her own; eating the smaller Slime's core to gain her experiences and abilities. She makes her debut at the end of Chapter 51 before appearing as the main antagonist of Volume 13.
Appearance[]
As a Black Slime, Nega-Suu's body can take different forms depending on how much water she has ingested. She is black in color due to the impurities in her body.
In her blob form, Nega-Suu resembles a giant octopus-like mass, with the ends of her tentacles having pointed appendages. Similar to Suu, she has a long Slime tentacle on top of her head. As Mr President explains in Chapter 54, Nega-Suu's body has taken on a gel-like consistency from her constant water intake, making her no longer soluble in water.
After Nega-Suu accidentally absorbed a small part of Suu's body in Chapter 52 and the polymer that the Black Lilies staff used against her drained too much water from her, Nega Suu's body took on a more solid, humanoid form. In this form, Nega-Suu mostly resembles Super Suu, but with a more aggressive appearance. She has sharp fingernails on her hands, and spike-like appendages on her shoulders, on the ends of her tentacles, on her elbows, and on her knees.
Personality[]
Not much is known about Nega-Suu's personality, or if she is even fully sentient. What is known is that she is a highly aggressive predatory Slime, who is extremely determined to absorb Suu to add to her own capabilities. Due to this aggressive and determined nature, Nega-Suu does not seem to care about the repercussions of the damage she does, even if that includes the deaths of others. Thus Nega-Suu can easily be regarded as one of the most dangerous Liminals that Kimihito and his homestay girls have encountered so far.
While it's not entirely clear whether Nega-Suu is fully sentient, she was at least able to act out a plan as shown in Chapter 52 when she communicated telephatically with Suu to lure the intelligent Slime girl to her. She also addressed Suu by her name, which implies that Nega-Suu has at least a basic understanding of self-awareness.
Despite her aggressiveness, Nega-Suu also seemed to develop a softer side of her personality later on, because in Chapter 66 it can see how she read a book in the captivity of the Black Lily Laboratory, which shows an open interest in this activity. It can be assumed that the main reason for this activity is to allow Nega-Suu to gain experience on its own, which makes it unnecessary to absorb an intelligent Slime. Later, Nega-Suu created dozens of new humanoids Slimes, although the reasons for this creative, perhaps even maternal act are completely unknown.
Since Black Slimes are created when the home of normal Slimes are polluted with toxic waste, it can be assumed that Nega-Suu originally had another personality, as Suu is also known that certain substances such as poisonous plants can change her personality for a short time.
Skills and Traits[]
Physical Traits[]

- Liquid Body: As her physical makeup is a liquid substance, her body acts in the same way. She can place people and objects inside of her body, or have them pass through. This makes her difficult to catch, as she can simply pass through the restraint, such as with Rachnera's webs.
- Invulnerability: Her physical makeup also makes her seemingly immune to any form of physical damage. Even when she solidifies herself, she is still immune to any form of blunt impact.
- Adhesive body: Nega-Suu also has the ability to stick to any surface, such as ceilings.
- Acidic body: The acidic properties of Nega-Suu's body are far stronger than those of regular Slimes. This is due to her evolving to break down nutrients in even the most inhospitable of environments.[1]
- Water absorption: Nega-Suu is capable of absorbing water into her body. For some reason, she is able to absorb far more water than any regular Slime as she can grow to giant sizes purely by absorbing water. She can also expel her internal water in highly pressurized streams from her mouth.[3][4]
- Assimilation: Nega-Suu is able to absorb other Slimes into her body, fully assimilating the other Slime's knowledge, memories, and experiences, and fully removing any trace of that Slime's individuality. Assimilating a small part of Suu's being allowed Nega-Suu to take on a humanoid form similar to her.[3][4]
- Dilution immunity: As opposed to other slimes, Nega-Suu is somehow able to prevent herself from dissolving when exposed to large bodies of water, such as lakes or rivers.[3][4] This is due to the large amount of contaminants she has absorbed.[1]
- Skeletal Structure: Highly unusual for a Slime, Nega-Suu has formed her own endoskeleton to support her body. This skeleton is made out of the impurities stored in her body for a long time.[1]
- Duplication: As shown in Chapter 66, Nega-Suu can reproduce by absorbing filtered onsen water containing the DNA of Liminals that have bathed in the water. In doing so, she created the Hot Spring Slimes, who also have individual characteristics of other Liminals, such as Nekomimi ears, due to the Liminal-DNA with which they were created.
- Weaknesses: Despite lacking a Slime's biggest weakness, Nega-Suu can still be defeated. For one, the proper chemical substances can rid her of most of her internal water. Likewise, like all Slimes, Nega-Suu is completely powerless should her core be removed from her body and isolated from any liquids.[3][4]
History[]
Not much is known about Nega-Suu's past, but according to the Slime info card, a Black Slime evolves from a normal Slime when its home is polluted with toxic waste. It is possible that this event led to Nega-Suu's aggressive nature in the first place, although this is unconfirmed. According to Nega-Suu's secret pages, up until the events of Volume 13, she didn't have much to do with humans, which made her not much educated or experienced.

The Black Lily employees discover Nega-Suu on the ship.
At some point, Nega-Suu stowed away on a freighter owned by Black Lily Innovations Research Laboratory, in an attempt to enter Japan for reasons unknown. The crew of the ship found her in one of the containers, and managed to capture her inside a tanker for transport. Although no one could explain how Nega-Suu got on the ship in the first place, Mr President saw this as a good opportunity to study the Black Slime, so he hurriedly obtained import papers for her. However, since the normal procedure for this would have cost too much time and money, Mr President filed for an exception under "new materials for EXPO use".
Mr President later suspected that the reason why Nega-Suu wanted to come to Japan was to absorbed Suu to gain all of her experience. However, if Mr President's assumption is correct, it remains unclear how Nega-Suu outside of Japan could have found out about Suu's existence in the first place.[3]
Plot[]
Liberation by Suu[]
After the Black Lily Laboratory brought Nega-Suu to Tokyo, they loaded the Black Slime into a tank truck and parked the vehicle in the parking lot of the Tokyo International Exhibition Center on the second (and final) night of the EXPO in Chapter 52. The location was specifically chosen as a camouflage so that the laboratory employees could later use the tanker truck to smuggle themselves under the departing cars at the end of the EXPO, so that they could secretly bring the Black Slime during the night to the laboratory.

Mega-Suu locks at Suu from the tanker truck.
By coincidence, however, Suu was in the parking lot at the time after she was separated from Miia, Centorea and Mero and getting lost when the other homestay girls where tracking Curie. When Nega-Suu became aware of Suu's presence, she communicated silently with the other Slime girls, whereupon Suu climbed onto the container of the tanker and opened the lid of the tank to free Nega-Suu, apparently unaware of the danger the Black Slime posed for her.

Suu opens the tanker truck.
However, in the moment Suu opened the lid, the tanker suddenly drove off, whereupon Suu accidentally got her right hand into Nega-Suu's Slime body and then fell off the tanker truck as the vehicle drove off. Suu waves after Nega-Suu as the Black Slime slowly freed herself from the tanker, before Suu noticed in the next moment that her right hand was suddenly missing because it had been absorbing through the contact with Nega-Suu's body insides. But she was able to immediatelly regenerate her missing hand. Shortly afterwards, Suu was found bei the girls of the MON who brought her back to the Kurusu house.[5]
Because of the tunker truck's departure, Nega-Suu had no opportunity to attack Suu at this time, whereby Suu also had no idea that the Black Slime had the intention to do so. Suu, perhaps because of her childlike naivety, didn't connect the lack of her hand with a possible danger that Nega-Suu could pose to her. By absorbing Suu's hand with the information gathered from it, Nega-Suu eventually gained the ability to change her slime body structure into a humanoid form, although she was unable to use this ability due to the amount of excess water that was still in her body.[3]
Rumours about the "Nessie Monster" and telephatic contact with Suu[]

The police officer saw the "neck" and "head" of the "Nessie monster" (actually Nega-Suu's head feeler).
Several days later after Nega-Suu's escape, rumours spread in Tokyo that some sort of "nessie monster" had been spotted in the river that flows right through the city. These inaccurate rumours were due to the fact that no one had seen Nega-Suu in full, only the feeler she has on her head in her blob form, which from a distance looked like the neck and head of a Plesiosaur/Nessie-like being. Kimihito and his homestay girls]] also learned about the rumours, whereby Miia was skeptical about them, although Kimihito pointed out that there were several eyewitness reports. One of these eyewitness was the bicycle police officer who, during his morning patrol in the fog, vaguely saw Nega-Suu and suffered a terrible shock.

Suu behaves very strangely as she tries to receive Nega-Suu's message.
Finally, Nega-Suu tried to contact Suu telephatically at the Kurusu house, which didn't go unnoticed by Kimihito and Lala because Suu suddenly behaved very strangely. Mega-Suu told Suu that she wanted to meet her, to which Suu accepted immediatelly and without hesitation, obviously unaware in her childlike innocence that Nega-Suu only wanted to lure Suu to her in order to absorb her and her experiences, in other words, the intention to kill her. As Suu ran out of the house, Kimihito and Lala, who didn't know what was going on but were worried about Suu's strange behaviour, tried to stop her but failed.
After a wild chase across Tokyo, Kimihito and Lala finally found Suu near a body of water, not knowing that Mega-Suu was lurking in the body of water and was getting ready to emerge. In the meantime, however, the employees of the Black Lily Laboratory had also started looking for Nega-Suu, where they were able to track down the Black Slime by using a transmitter that they had implanted in her Slime body. However, when the staff arrived on side, they mistook Suu for the Slime they were supposed to catch, vaccumed her up and took her away to the Laboratory, much to the shook of Kimihito and Lala. After Suu was captured, Nega-Suu disappeared back under the surface of the water before anyone could notice the presence of the Black Slime.[5]
Second attempt to capture the black slime[]
After Kimihito and his homestay girls, as well as Ms Smith, rushed to the Black Lily Laboratory to free Suu, Ms President (whom the protagonists met for the first time) told them that Suu's capture was an accident and that the "Nessie Monster" was a liminal that had escaped from his people when she was imported into Japan. Since the tanker's security cameras showed Suu freeing the black slime, Mr President "persuaded" Kimihito and his homestay girls to help his his company to capture Nega-Suu, after Ms Smith had previously said that it was the responsibility of those who freed the Liminal to recapture it. Ms Smith was frustrated that the Prez used her own words against her, but she was unable to find something contradict his argument.
A short time later that night, Mr President led the group near the river of Tokyo, explaining to them that his company had implanted a transmitter in the Liminal in order to detect it. He also explained to them that the escaped liminal would be attracted to Suu and that it would be enough to use Suu as bait, so that his company could then capture the Liminal "without any problems". However, Mr Presiden concealed important information about Nega-Suu from Ms Smith, Kimihito and the girls, such as that she was a Black Slime and that she intended to absorb Suu.
Mr President knew what a risk he was taking and that using Suu as bait would put the Slime girl's life in great danger. The Prez justified this immoral plan to himself, thinking that Kimihito and his homestay girls were there to protect Suu so that nothing would happen to her. However, that he didn't tell them in advance about the true extent of the danger posed by Nega-Suu should prove to be a serious and negligent mistake.

Nega-Suu emerges from the river.
When Nega-Suu finally surfaced, Kimihito and his homestay girls saw that the "Nessie Monster" was actually a giant slime Liminal. Nega-Suu moved towards Suu, but Miia quickly brought Suu to safety and the two jumped onto a push cart with Kimihito, which was then pulled out of reach of Mega-Suu by Centorea. This enraged the Black Slime, whereupon she stepped out of the river and chased the group.

Mr President's men spray Nega-Suu with the hydrophilic polymer...
Mr President then ordered his men to use the hose truck tankers, which sprayed Mega-Suu with an extremely hydrophilic polymer. Since Mr President knew that a slime can always regenerate as long as its core remained intact, he thought that the best way to catch Mega-Suu would be to use the polymer to remove the water from the Black Slime, so that his men could then suck up Nega-Suu's exposed core with their vaccum suckers.

... but when too much of the excess water is removed, the Black Slime unexpectedly takes on a humanoid form.
Unfortunately, however, this plan backfires, as spraying with the polymer doesn't weaken Nega-Suu, but instead changes her from her cumbersome and misshapen blob form to a more humanoid and much more dangerous form, much to the dismay and shock of Mr President, Kimihito and the girls. Ms Smith suspects that the absorption of the polymer took to many water, so in response the Black Slime's structure become more concentrated, which allowed her to take a more solid form. Smith also suspects that Nega-Suu absorbed a small part of the knowledge of Suu by absorbing the other Slime's hand and now imitated Suu's form.

Nega-Suu attacks the protagonists.
Now in her new form, Mega-Suu went to attack Kimihito and his homestay girls, where Mr President finally explained to the group the true intentions of the Black Slime, namely that she wanted to absorb Suu. Nega-Suu spat a stream of water onto the protagonists' push cart, causing them to fall to the ground. Nega-Suu paid no attention to the others and built up threateningly in front of Suu. Suu tried to get Kimihito to safety, although he shouted to her that she should flee and leave him behind, fearing what the Black Slime would do to her.

Nega-Suu looks down at Lala threateningly.
In the next moment, however, there is an unexpected interruption; While the other girls had gone out with Kimihito to catch Nega-Suu, Lala's body had separated from the group and gone alone in the Black Lily Laboratory in search of her head. She finally found her head in a storage room in a box that also contained the royal jelly of a Honey Bee Liminal. However, when two employees of the laboratory suddenly entered the storage room, Lala's body panicked and ran away with the box in her hand, whereupon the two employees thought she was a thief and ran after her. Rather by coincidence, Lala runs into the scene of the tumult with Nega-Suu, where she abruptly freezes in shock at the sight of the giant Black Slime.

Suu also grows to a giant size due to the royal jelly.
Unprepared by Lala's abrupt stop, the two lab employees crash into her, whereupon the box is thrown out of her hand. The box opens in the air so that Lala's head and the bottle with the royal jelly fall out. The bottle lands in the back of Suu's head, whereupon she absorbs the royal jelly. However, the extremely high nutrient content of Royal Jelly has an extraordinary effect on Suu, whereby the Slime girl also grows to a giant size, to everyone's shock. Now able to confront Nega-Suu with equal strength, Suu says that she will not forgive the Black Slime for trying to hurt Kimihito. Kimihito himself, who has landed on Suu's breasts during her sudden gigantism, has trouble holding on while Nega-Suu looks at him and Suu threateningly.[3]
Zoological Classification[]
- Main article: Slime

Black Slimes (スライム, Burakku Suraimu) are slimes that have turned black because their homes are polluted by toxic waste. It is impossible to determine their original color. Though they often make dark and satirical comments on society, they are not careful with their word choices and don't generally understand what they are saying. They are extremely violent and hostile to humans.
Trivia[]
- Nega-Suu, along with Wladislaus Drakulya, is one of the few antagonists who have proven to be a real threat to the point where their actions are taken entirely serious and they have no humorous moments. In the case of Nega-Suu, this is partially mitigated by the fact that her attemps to absorb Suu were not out of malice, as her rather lack of sentient made her more like an animal, who simply follows the nature of a wild Slime to produce new Slimes. Nevertheless, she is still one of the most dangerous Liminals Kimihito and his homestay girls had to face.
- In Chapter 54, Mr President states that his company has implanted a transmitter on Nega-Suu so that she can be located at any time. However, it is unclear how it should even possible to implant a transmitter into a Slime, since a Slime is liquid, which is why a transmitter cannot be attached anywhere. In addition, there is the fact that Nega-Suu is a Black Slime, so a transmitter would be decomposed by the acidity of Nega-Suu's body.
- Mr President suspected in Chapter 54, that Nega-Suu only wanted to come to Japan to absorb Suu. However, this assumption also raised the question of how Nega-Suu found out about Suu's existence at all.
- Unlike Suu, Nega-Suu has no pupils, even in her humanoid form. This is probably a deliberate stylistic device by Okayado to show Nega-Suu's violent and possibly not fully sentient nature.
- Although Nega-Suu is occasionally referred to as "she" in Volume 13, most characters and also Nega-Suu's secret pages in the official translation mainly use the pronoun "it" to refer to her, due to her possibly not fully sentient nature.
- In the official translation of Chapter 66, Mr President uses the pronouns 'they' and 'them' for Nega-Suu instead, but whether this means that Nega-Suu identifies herself as non-binary has not yet been confirmed in the series.
- In Chapter 81, a Slime girl appears who bears a strong physical appearance to Nega-Suu, which is further supported by the fact that the Black Lily Laboratory uses the Slime girl to filter the water in the Black Lily Waterpark, similar to how they also used Nega-Suu in Chapter 66 to filter the onsen water in the Arctic Inn. However, in Chapter 81 it is not confirmed beyond doubt whether the filtration Slime girl is really Nega-Suu, as neither Kimihito nor someone else identify the girl as Nega-Suu.
- Since the filtration Slime girl is also a "daughter" of Suu's mother, this would mean that Nega-Suu, if she is really the filtration Slime girl, almost killed her own sister by attempting to absorb Suu in Volume 13.
- Nega-Suu's exact whereabouts are currently unknown, but judging from the events of Chapter 66, she is likely still in captivity at the Black Lily Laboratory.
References[]
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Nega Suu's Secret Pages
- ↑ Chapter 66
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Chapter 54
- ↑ 4.0 4.1 4.2 4.3 Chapter 55
- ↑ 5.0 5.1 Chapter 52