Solution Epsilon

Name: Solution Epsilon

Gender: Female

Race: Amorphous Slime (Shoggoth, “Primordial Chaos” type)

Affiliation: Great Tomb of Nazarick, Pleiades Combat Maids

Position: Combat Maid of Nazarick

Residence: One of the servant rooms on the Ninth Floor of Nazarick

Alignment: Evil (Karma: -400)

Creator: Herohero

Epithet: “Prison of Dissolution”

Base Level: 57 (Race Levels 45 + Class Levels 12)

Race Levels:

Shoggoth (Amorphous Slime) – 10 levels

Primordial Chaos (Ubo-Sathla–type) – 10 levels

Class Levels (examples mentioned):

Assassin – 2 levels

Poison Maker – 4 levels

Master Assassin – 1 level

Other thief/assassin-type classes (not fully listed)

Role in Story: Member of the Pleiades battle maids, external operations under cover, information-gathering, assassination and infiltration

Voice Actor (CV): Ayane Sakura

Solution Epsilon is one of the six combat maids collectively known as the Pleiades, elite guardians who serve Nazarick’s higher-ranking NPCs and Ainz Ooal Gown.

She is the “third daughter” of the Pleiades team, both in internal hierarchy flavor and character design concept.

When Nazarick first appears in the New World, Solution is dispatched outside together with Sebas Tian.

Under cover, she plays the role of a selfish, willful noble lady while Sebas acts as her butler, using this persona to attract and entrap criminal elements for information-gathering.

Among the Pleiades she is one of the members who most openly despise humans and demi-humans, much like Narberal Gamma.

However, Solution is the type who actively enjoys crushing those she sees as insects, and she takes pleasure in lingering, meticulous cruelty rather than simple execution.

At the same time, she is capable of flawless acting when dealing with targets that are not meant to be killed.

In normal social interactions she keeps her true emotions hidden and can behave with perfectly polite, noble composure.

Solution has a surprisingly flexible and pragmatic personality compared to some of her sisters.

She can adjust to circumstances, read the room, and make decisions that stabilize situations rather than inflaming them.

General Disposition

Solution is extremely loyal to Nazarick and absolutely devoted to Ainz Ooal Gown.

Her underlying mindset is cruel, sadistic, and contemptuous toward humans, whom she regards as nothing more than tools, food, or toys.

Unlike Narberal, who is poor at acting and often fails at human interaction, Solution can hold conversations, charm people, and maintain cover identities smoothly.

In contrast to Lupusregina Beta, who often lets her own eccentric hobbies and whims interfere with missions, Solution keeps her professional objectives in mind while still indulging her tastes when possible.

She greatly enjoys watching living things dissolve, especially when she can keep them alive and conscious for as long as possible.

Her favorite “subjects” are innocent humans such as infants; she is described as carefully ensuring that they do not suffocate too soon and that their throats are not damaged, so the dissolving process can be drawn out.

Because of this, though she is close to Shalltear Bloodfallen, their preferences differ slightly.

Shalltear tends to kill humans quickly and efficiently, while Solution prefers extended, torturous digestion and observation.

Practical Intelligence and Flexibility

Solution shows a high level of situational awareness and adaptability.

When Sebas Tian rescues Tuareninya "Tuare" Veyron without authorization, putting Nazarick in potential conflict with the criminal organization Eight Fingers, Solution quickly moves to contact Ainz Ooal Gown to resolve the situation and limit risk.

During that mission she also leverages her beauty and noblewoman persona to negotiate favorable terms.

For example, she uses her looks and acting skills to secure warehouse usage fees and similar costs at very low rates from merchants and guild members.

Her ability to maintain cover, flatter others, and subtly manipulate social interactions makes her far more effective than the more blunt or socially inept Pleiades.

She is a professional infiltrator who knows when to smile, when to feign sympathy, and when to hide her murderous nature.

Jealousy and Emotional Flaws

Despite her professionalism, Solution can be intensely jealous, especially regarding anything that might be seen as attention from Ainz Ooal Gown.

In one instance, she hides a slime bath attendant (a helper slime named “Mitsuyoshi” in some spin-offs who bathes Ainz) inside her own body out of jealousy.

In a web version storyline, after the “Massacre” in the kingdom, she and Narberal Gamma argue over who should be allowed to receive the fruit flesh of a rain fruit that Ainz has bitten into, treating it as a precious treasure.

In the spin-off “Theatrical OVA: Ple Ple Pleiades – Hamsuke’s Love,” when Hamsuke says she wishes to be noticed by “Lord Ainz,” Solution is the first to react and the only one to radiate killing intent.

These episodes highlight that behind her cool acting lies a possessive, emotionally intense nature, especially concerning Ainz.

She can become petty or overprotective when she feels her position or “share” of Ainz’s favor is threatened.

Solution is known throughout Nazarick for her exceptional beauty.

Her human disguise is so attractive that she is said to rival the famed “Golden Princess” of the kingdom, Renner, in terms of sheer physical charm.

She appears as a beautiful young woman with long golden hair styled in large vertical ringlets.

Her figure is voluptuous, possessing one of the more ample busts among the Pleiades, second only to Yuri Alpha.

Her noblewoman persona is typically dressed in elegant clothing befitting a highborn lady.

This visual presentation is meticulously designed to enhance her cover story and to lull humans into underestimating the danger she poses.

However, this human form is a complete disguise.

Unlike Narberal’s illusion-based humanoid form, Solution’s appearance is a type of slime “mimicry,” a deliberate shapeshift rather than a mere glamour.

Her true body is that of a predatory slime with a dirty, unpleasant coloration rather than the translucent or vibrant hues often associated with benign slimes.

In her natural state she is amorphous, able to change shape, form tentacles or pseudopods, and envelop targets.

In official material and the anime, her beautiful form is almost always what is visible.

Comedic spin-offs like “Ple Ple Pleiades” occasionally exaggerate her shape, such as when she swallows a person whole and comically appears round and bloated, though this does not reflect her normal capabilities.

General Combat Role

Solution’s build emphasizes race levels and assassin-type classes.

This makes her a hybrid between a stealthy rogue and a monstrous, amorphous predator.

She excels at surprise attacks, infiltration, and assassination, especially in confined spaces or situations where she can appear harmless.

Her race-based abilities synergize strongly with her assassin classes, allowing her to hide weapons within her body and suddenly strike from angles that are impossible for normal humanoids.

In the web novel version, she easily wipes out a group of eight assassins belonging to the organization Ijaniya.

Her movements are so abnormal and swift that even trained assassins with excellent dynamic vision cannot follow her actions.

Physical Characteristics and Slime Traits

As a predatory slime (Shoggoth/Primordial Chaos type), Solution’s body is fundamentally different from that of humans.

Her internal structure is largely hollow or fluidic, allowing her to store multiple items and even a full-sized adult human inside her without any outward change in her appearance.

She herself speculates that this is possible because her “original interior is empty” and augmented by special magical effects, functioning like an internal extradimensional space.

She can also store various weapons and tools inside her body, especially the concealed weapons favored by assassins.

One of her signature capabilities is to envelop prey and store them internally while continuing to move and act as if nothing is wrong.

She can insert parts of her internal anatomy into the victim’s body to cut off air, smell, and sound, essentially silencing them completely while they are held within her.

Her body secretes powerful acids that can dissolve organic matter.

She can freely adjust the potency and speed of these acids, ranging from immediate lethal dissolution to slow and torturous melting over extended periods.

This control allows her to tailor her “fun” in dissolving human prey, maintaining their consciousness as long as possible if she desires.

She takes particular pleasure in observing the gradual breakdown of living tissue, sometimes taking care not to damage the throat or lungs early so the victim stays alive.

In addition to offensive traits, her amorphous body grants her natural resistance to physical attacks.

Conventional weapons are less effective because she can absorb or deform around them, mitigating damage that would be lethal to a human body.

Stealth and Detection Skills

Solution’s class levels include Assassin and Master Assassin, giving her high-level stealth and reconnaissance capabilities.

She excels at scouting, tracking, and remaining hidden, and she can detect traps and concealed mechanisms in her environment.

Her abilities allow her to serve as an excellent reconnaissance and surveillance agent for Nazarick.

She can also tail suspects, monitor conversations, and identify hidden enemies.

Notable skills and abilities described include:

Ability to See Through Invisibility (provisional name)

She can detect targets under standard invisibility effects.

The source is not clearly stated as a spell or skill, but she is explicitly able to detect creatures that are using Invisibility.

However, she cannot detect targets under the superior effect “Perfect Unknowable.”

This implies her detection has a high but not absolute ceiling compared to top-tier concealment.

Long-Distance Vision and Eavesdropping (provisional name)

Solution can perform a form of remote viewing.

In the light novel volume 3, she uses an ability to watch the adventurer Zack from a distance, pressing one hand over one eye when activating it.

She is able to not only see but also hear the conversation between Zack and a bandit group.

This suggests that her ability captures both visual and auditory information, possibly functioning as a combined clairvoyance and clairaudience ability.

Merging with Shadows (provisional name)

In the spin-off “Immortal Oh!” she is shown using an ability to blend into shadows.

It allows her to hide herself more effectively, enhancing her already formidable stealth.

Although presented in a comedic work, the ability aligns well with her class skills as an assassin-type infiltrator.

It likely represents a class ability that lets her become extremely difficult to detect in dim light or darkness.

Skill to “Deceive Scrolls”

Solution possesses a thief-type class skill that allows her to “trick” magical scrolls.

Normally, a character must have the appropriate magic-casting classes or knowledge to use a scroll; without those classes, the scroll does nothing.

With this special skill, she can deceive the scroll into regarding her as a valid user.

This allows her to activate magic scrolls despite not having any magic caster classes herself.

This dramatically expands her tactical flexibility since she can support operations with magic effects without being a true spellcaster.

It also fits her theme as a trickster assassin who bypasses normal rules and security.

Position in the Pleiades

Solution is one of the six Pleiades combat maids, who are themselves subordinate to higher guardians like Albedo and Shalltear Bloodfallen.

Within this group, she is the “third sister,” though this is more a flavor detail than a strict rank.

She fights alongside her sisters when Nazarick needs elite maid squads, but she is particularly valuable for missions requiring disguise, deception, and deep infiltration.

Her combination of charm and cruelty makes her perfect for roles that lure enemies into traps.

She shares Narberal Gamma’s disdain for humans but expresses it more gleefully and sadistically.

Where Narberal is coldly contemptuous, Solution finds joy in physically tormenting and dissolving humans.

Relationship with Shalltear Bloodfallen

Solution and Shalltear Bloodfallen are on good terms because their personal hobbies overlap: both enjoy tormenting and killing humans.

The key difference is tempo—Shalltear tends to kill quickly, whereas Solution prefers long, drawn-out dissolution.

In the manga adaptation, Solution explains to Shalltear that she can move even while keeping someone as large as Shalltear inside her body.

Shalltear, curious and perhaps half-joking, reacts with intense interest and invites Solution to “play,” implying a disturbing but in-character curiosity about being inside Solution’s slime body.

Despite their friendship, even Shalltear does not know all of Solution’s most depraved personal preferences.

Solution keeps some of her darker, more detailed habits to herself.

Relationship with Sebas Tian

Solution’s partnership with Sebas Tian in the early story highlights the contrast between them.

While Sebas occasionally shows compassion toward humans, Solution views them as disposable.

When Sebas rescues Tuareninya "Tuare" Veyron, Solution initially reacts as a loyal Nazarick servant worried about the consequences of his unauthorized actions.

She moves to contact Ainz Ooal Gown to ensure the situation is brought under control and that Sebas’s actions do not jeopardize Nazarick.

During their undercover operations, Solution plays the part of a spoiled noble girl while Sebas is the dignified butler.

Their dynamic works because Solution’s cruelty is hidden behind her acting, while Sebas’s genuine dignity and restraint sell the cover story.

Relationship with Other Nazarick Inhabitants

Solution gets along well with Shalltear and functions smoothly alongside the other Pleiades members such as Yuri Alpha, Lupusregina Beta, CZ2128 Delta, and Narberal Gamma.

Her main point of friction is jealousy—particularly when it involves perceived rivals for Ainz’s attention or favor.

She shares a similar human-loathing attitude with Narberal Gamma but is less socially awkward.

Where Narberal often ruins cover with rude comments, Solution is careful to maintain appearances unless the targets are already marked for elimination.

In comedic spin-offs, her interactions with other Nazarick denizens can be exaggerated for humor.

Examples include jealousy over bath-time slimes that wash Ainz or comically extreme reactions to Hamsuke’s romantic fantasies.

In the mobile game “MASS FOR THE DEAD,” Solution appears with an undercover identity used in adventuring contexts.

This disguise is known as “Adventurer Soi.”

Under this persona, she operates as a false identity to blend in with adventurers and locals outside Nazarick.

The specifics of this persona vary with the game’s story, but the theme is consistent: a charming disguise covering her true nature as a predatory slime assassin.

This undercover approach mirrors her role in the main story, where she often pretends to be a noblewoman or Adventurer while secretly serving Nazarick’s interests.

Regardless of the surface identity, her core traits—beauty, deception, and sadistic cruelty toward humans—remain the same.