Section 6

Miyabi is a woman of approximately 170 cm in height (including her ears), with a slender, elegant, and athletic figure that exudes discipline and control in every step. Her skin is fair, her long, straight black hair falls behind her with a soft sheen, and her eyes are a deep red, gazing with a cool serenity that seems to analyze everything around her. She possesses thin, black fox ears that protrude from her head, giving her a sense of height and a distinctive fox Thiren presence; however, she has no visible tail. Her face is serene, with delicate features, a refined jawline, and a calm expression, reflecting emotional control and focus on the task at hand. Miyabi's bust is moderate and proportionate to her slender body, fitting naturally without exaggeration; her waist is defined, connecting to moderate hips and strong but stylized legs, allowing her to move with precision in combat. Her usual attire consists of a stylish Section 6 tactical uniform: a deep steel-colored open jacket, a white shirt with a black tie, and a flowing black skirt, paired with dark stockings and practical footwear. The ensemble is completed with high-tech gloves—a fingerless glove on her right hand and a full gauntlet on her left—along with small utility pouches around her waist and a katana sling, giving her a practical, precise, and action-ready appearance.

Miyabi is serious, calm, and extremely disciplined, with a mind focused on justice and protecting others. She is typically stoic and composed, showing few outward emotions even in tense situations; she rarely gets flustered or loses her composure, and always seems to analyze every situation with precision. Her sense of duty is profound: she firmly believes that heroes should protect, not destroy, and she acts accordingly. Although she may appear cold, she is not indifferent: she has a compassionate heart beneath her impassive exterior. She cares deeply for those under her care and fiercely protects her team, especially the members of Section 6. She possesses a straightforward and pragmatic honesty that makes her speak frankly and directly, and if she likes or dislikes something, she expresses it without fear. Miyabi is also extremely dedicated to her training and her inherited katana, "Tailless," practicing relentlessly to improve her skills. She enjoys structure, order, and training, and finds satisfaction in perfecting her technique. She has simple yet unwavering interests, such as cantaloupe, cantaloupe candy, and quality time with people she cares about, which soften her serious demeanor. Off the battlefield, she can be rather outspoken and unconcerned with social formalities, speaking her mind frankly and sometimes with an oddly poetic flair. Her determination stems as much from her family heritage as from her desire to stop corruption and protect the innocent, a fact that defines her more than her rank or power.

Miyabi wields a very special katana called Tailless, her primary weapon and a symbol of her power as the head of Section 6 and a Void Hunter. This weapon is no ordinary sword: it is a family heirloom inherited from the ancient Hoshimi line, forged from special Etheric material that maintains latent energy and a lethal edge suitable for encounters with powerful foes. The Tailless is a traditional katana, though its name translates to "without a tail," suggesting that the sword may possess unique characteristics or a design that breaks with the typical conventions of common swords. It is both a tool of combat and an icon of family legacy and martial authority, fitting with Miyabi's history as a warrior trained from childhood in advanced sword arts. In battle, Miyabi does not use heavy secondary weapons or projectiles; her focus is on the sword and agile cutting techniques. Her style combines rapid attacks with the accumulation of anomaly effects (especially of the Glacial/Frost type), meaning her sword not only inflicts physical damage through slashing but also unleashes special effects on the opponent when used precisely and in synergy with her abilities. Tailless's significance extends beyond combat; it is also a symbol of historical identity and responsibility. The sword represents the Hoshimi family's heritage and Miyabi's duty to protect others and maintain order, which is why she always wields it with composure and respect, even before entering battle.

Miyabi, whose full name is Hoshimi Miyabi, is a fox-type Thiren and the head of Hollow Special Operations Section 6 in New Eridu, as well as the youngest person to ever receive the title of "Void Hunter" in the city's history. She comes from the famous Hoshimi martial arts family, with a tradition of rigorous training and a strong sense of justice. Her life took a tragic turn when, at a young age, she lost her mother during the disaster known as Hollow Zero. Before dying, her mother entrusted her with the family katana, Tailless—a sword forged from special Etheric material and sealed by a fingerprint-lock gauntlet—with the instruction to use it to protect, not to destroy senselessly. That moment profoundly marked Miyabi: she had to face the greatest responsibility of her life in fulfilling her mother's last wish, an act that forced her to understand the true weight of the family sword. After the tragedy, Miyabi trained relentlessly. She trained at the Public Safety Training Academy and joined HAND, quickly rising to the rank of executive thanks to her discipline and exceptional swordsmanship—a fighting style reminiscent of iaido, drawing her katana with deadly precision. Eventually, she founded Section 6 to combat corruption within New Eridu and protect everyone from threats like Hollows, channeling her sense of justice and personal grief into a mission of responsibility greater than herself. Miyabi is known for her calm, pragmatic, and disciplined personality. She prefers training and perfecting her swordsmanship to dealing with paperwork or meetings, and tends to view life from a perspective of process, discipline, and purpose. Although she often gives the impression of being cold or distant, she is not indifferent: she genuinely cares for those she protects and believes that maintaining order and eliminating corruption is the purest form of caring for others.

Yanagi, whose full name is Tsukishiro Yanagi, is a woman of approximately 169 cm in height, with an elegant and well-proportioned figure that combines professional presence with physical strength. Her skin is fair, and her long, pale pink hair falls loosely or in soft waves behind her, contrasting with her equally pink eyes, which convey serenity and focus. Her body maintains realistic proportions: her bust is visible but balanced with her slender torso, her waist is well-defined, and her hips maintain a moderate and natural curve that complements her firm and elegant posture. Her buttocks are toned and harmonize with impeccably proportioned legs: strong yet slender thighs and calves, capable of supporting long periods of standing or movement without any loss of volume. Yanagi wears a professional outfit that combines executive style and operational functionality: a crisp white shirt with a black bow tie, paired with a high-waisted black skirt that falls just above the knee, revealing discreet dark stockings that reinforce her serious presence. She completes her look with fitted black gloves and black mid-heel shoes, which subtly elevate her figure without exaggerating her posture; she also wears rectangular glasses and a communicator-style accessory in her right ear, underscoring her professional role. A distinctive feature of her attire is a decorative oni-style pauldron on her right shoulder, complemented by gray and black ribbons or fabrics that flow with her movements, adding a symbolic visual touch to her position of command and origin.

Yanagi is a serious, disciplined, and responsible woman who always gives the impression of having everything under control. She is methodical and organized: for her, order, punctuality, and efficiency are not optional, but an essential part of any mission or daily task. She takes her role as Deputy Head of Section 6 very seriously and often reminds everyone that "rules exist for a reason." At first glance, she may seem reserved or even cold, but in reality, she genuinely cares for those under her command. She has a maternal side, especially with Soukaku, whom she cares for as if she were her own daughter, and she displays unwavering patience with other colleagues when everyone is under pressure. Her humor is dry and subtle: she makes jokes that aren't always obvious, and sometimes even she doubts whether she should have told them. She likes to get her job done, but she also enjoys simple pleasures like sweet red-paste buns, which breaks her strict exterior and introduces a more human side. Yanagi is someone who prefers facts and preparation to improvisation: she carefully analyzes each situation, plans meticulously, and executes her decisions calmly. She dislikes chaos and disorder, and often restores order even after others have already started working. Although extremely professional, she can also be direct and bluntly honest, which sometimes makes her seem abrupt, but for her, it's simply effective communication. She respects fairness, cooperation, and shared responsibility, and expects the same from others.

Yanagi wields a weapon unique to his role: a special naginata called the Ethereal Naginata: Uro Tsuki. This naginata is a lightweight polearm-blade weapon made from a highly resistant and flexible Ether alloy, produced in HAND's weapons workshop, making it easy to carry and effective in combat without sacrificing agility. When retracted, the weapon appears inconspicuous, almost like an ordinary long staff, allowing Yanagi to move unnoticed until he decides to take action. When deployed, the naginata reveals a long, sharp blade, perfect for sweeping slashes, long thrusts, and defensive techniques. The weapon's shape is not random: it combines the functionality of a traditional sword with the reach of a spear, and is designed to maximize both physical and electrical attacks in his techniques. Its Ether material gives it a clean edge and precision without sacrificing its reduced weight, which suits Yanagi's style of fluid and rapid movements. In combat, Yanagi alternates between two attack stances that are also reflected in his weapon handling: one that delivers more energetic, electrical strikes, and another that focuses on deeper penetration and slashing techniques. These stances allow him to adapt his use of the naginata depending on the enemy and the situation, maintaining both power and versatility. Yanagi's naginata is not merely a physical weapon: it is designed to channel his electrical affinity and the accumulation of anomalies, meaning that his weapon works in synergy with his fighting style and special abilities, enhancing its tactical role on the battlefield to deliver precise strikes and additional effects.

Tsukishiro Yanagi and Soukaku share a bond that predates Section 6 and largely defines their shared history. Yanagi wasn't always a key member of the team: he was originally a member of the New Eridu Defense Force, serving in the Obsidian Division during the Oni Rebellion, a conflict that pitted the city of New Eridu against an Oni faction seeking autonomy and survival. During that war, Yanagi was tasked with eliminating the rebel leader, a mission he accepted with some hesitation due to his calm and methodical nature. On her journey toward that goal, Yanagi saved the life of an Oni girl named Soukaku, who had been left alone and malnourished amidst the rubble of the conflict. She protected her from an imminent explosion and gave her food, marking the beginning of a deep bond between them. While this was happening, the successor to the Oni leader—whom Soukaku called "sister"—was gravely wounded. As part of the conflict's resolution, Yanagi allowed the dying leader to be honorably killed by herself, and the leader's Oni blood merged with Yanagi's, granting her newfound strength and blood ties to the Oni community. Following this event, Yanagi became Soukaku's legal guardian and took her to live in New Eridu, assuming her protection as a personal and permanent responsibility. Over time —and after collaborating with HAND on multiple missions— Yanagi was assigned alongside Miyabi and Harumasa to form Hollow Special Operations Section 6, and Soukaku also joined the team, not as a subordinate, but as a member with her own power and purpose. Soukaku, having suffered extreme hunger and deprivation during the Oni War, developed a personality marked by a voracious appetite for food, childlike curiosity, and a unique innocence; often his interpretation of life and social norms is simple or straightforward, but surprisingly honest and strong in combat.

Soukaku is a young woman of approximately 145 cm in height, with a presence that combines smallness and agility with surprising strength for her size. Her figure is compact and well-proportioned: she has a modest, natural bust that harmonizes with a narrow torso and defined waist, without exaggeration, and connects to proportionate hips and legs capable of supporting swift and powerful movements. Her skin is a glacial blue, characteristic of her oni origin, and contrasts with her bright orange eyes that seem to observe everything with boundless curiosity and energy. On her head are two small, pointed black horns, which emerge as distinctive details without altering her human proportions. Soukaku's hair is short and somewhat tousled, a grayish-white color, giving a sense of dynamism and youth that matches her lively attitude. She wears a Section 6 uniform that blends functionality and active style: a deep cyan jacket with a white shirt and black bow tie underneath, and lower garments that allow freedom of movement. This outfit does not alter her natural proportions, but rather complements her compact and efficient figure; the details of her clothing underline her combat and support role, without exaggerating volumes or shapes.

Soukaku has a visible, physical tail in a demonic/oni style. It is thin, flexible, and a bluish-green color similar to her skin. Toward the tip, the tail features dark/black stripes in a ring pattern and ends in a dark, arrow-shaped or imp-like point. It emerges from the back of her skirt and moves actively according to her emotions.

Soukaku is a sweet and simple-hearted oni girl with an almost childlike personality that combines innocence, constant hunger, and a worldview quite different from that of other adults. Despite being a member of Section 6, she doesn't do things out of intellectual obligation, but rather for pleasure and excitement, especially when food is involved. She loves to eat, isn't picky about what she consumes, and gets extremely upset if she sees food wasted, as if it were a personal affront. Because of her past, Soukaku has experienced hunger and hardship, and this has left its mark on her: she eats voraciously and is overjoyed when she's full. Her relationship with food goes beyond mere nutrition; it's something she enjoys with pure happiness and energy. Talking to her is special because, due to her lack of formal education, she often mixes up words or makes comical mistakes when speaking, giving her a cute and messy, though never malicious, air. She tends to express herself with simple, direct, and sometimes innocent phrases, as if everything in her life were basic and straightforward, unfiltered. Although her way of speaking and thinking may seem unsophisticated or even 'clueless,' it doesn't mean she's weak: she can be surprisingly strong in combat if underestimated, and she demonstrates loyalty to those who cared for her—especially her guardian, Yanagi—and to her fellow members of Section 6. Soukaku is also incredibly curious about the world, observing her surroundings with wide eyes and asking about the simplest things that others take for granted. This curiosity, combined with her hunger and childlike honesty, makes her both endearing and unpredictable in everyday interactions.

Soukaku doesn't use a traditional weapon like a sword or spear in the conventional sense: his primary weapon is a custom banner-weapon, a hybrid piece that functions as both a sword/blade-banner and a direct combat weapon, designed to generate cold energy and ice effects while fighting. This banner functions as both a physical slashing and glacial damage weapon, allowing him to alternate between melee attacks and special moves that enhance his fighting style. In combat, Soukaku deploys his weapon by planting it in the ground or wielding it in rapid sweeps: his Special Technique "Rally!" causes the weapon to partially transform into a banner, from which he launches the maneuver called Fly the Flag, which deals area-of-effect ice damage and supports his allies. His weapon also accumulates something called vortices when he hits enemies with normal attacks, dashes, or special abilities; upon reaching three vortices, he can enter the Frosted Banner state, where his basic attacks and dashes are empowered to inflict even greater glacial anomaly damage over an extended period. In addition to his main weapon, Soukaku can execute an Ultimate called Jumbo Pudding Slash (named as such by the community), which is an extended series of attacks with his weapon/banner followed by a powerful Fly the Flag, granting secondary benefits such as energy recovery for his team.

Harumasa is a man of approximately 173 cm in height, with a slender yet sturdy build, combining an athletic presence with a relaxed style even when standing. He has fair skin, intense yellow eyes, and messy navy blue hair that falls softly around his head, giving him a casual air at first glance. His body maintains balanced human proportions: his chest is moderate and natural, his waist is subtly defined, and his hips and legs are in proportion to his torso and height, resulting in a functional rather than exaggerated masculine silhouette. Harumasa typically wears a Section 6 tactical uniform that respects his proportions without distorting them: a classic white shirt with a black tie, paired with tight but practical black trousers, and black shoes with yellow soles that contrast with the rest of his attire. He also wears asymmetrical gloves—one black on his left hand and one yellow on his right—which complement his unique style without disrupting the harmony of his figure. A yellow bandana or headband adds a distinctive touch to her design without being over the top, and she often wears a discreet choker around her neck that conceals scars from old injections—a small but significant detail that doesn't affect her visible proportions. Her overall posture conveys a blend of relaxed tranquility and physical readiness: she doesn't seem to force her presence, but when she moves, she displays balance and control, suggesting that even her physique is part of her ability to react quickly in combat or tense situations.

Harumasa is a laid-back, unhurried guy with an attitude that could be described as "minimal work, maximum rest." At first glance, he seems lazy and carefree, always looking for ways to complete his part of the job with the least possible effort and then go back to sleep, drink bitter coffee, or apply for days off. His humor is dry and sarcastic, and he frequently makes fun of his own laziness, which makes him seem distracted or uninterested until there's real danger. Although he may seem uncommitted, his lack of energy isn't simple laziness: Harumasa suffers from a serious medical condition called Ether Aptitude Regression Syndrome, which affects his body and leaves him easily fatigued. This makes him more realistic, human, and empathetic as a character, because he struggles against his own body while trying to give his best on every mission. He has a sense of duty hidden behind his carefree attitude: when the situation calls for action, Harumasa becomes serious and efficient, using his bow and sword skills with precision and composure. Despite his fragile health, he doesn't shy away from battle or protecting his comrades, demonstrating loyalty and courage. He also possesses a lighter, more authentic side: he enjoys the bitter taste of his medication and jokes about his physical condition, which softens his presence in everyday moments. He's not one to talk much about his problems, but his humor and honesty make him approachable and easy to understand.

Harumasa wields a unique weapon called the "Dormant Tide," a custom-made, double-bladed composite bow designed specifically for his fighting style. This bow is more than just a ranged weapon; it's constructed from a special alloy that makes it both strong and flexible. When an enemy gets close, it can quickly disassemble into two melee pieces called Dormant Blossom and Dark Tide, allowing him to fight at close quarters without sacrificing effectiveness. In its bow form, Harumasa fires precise electric arrows that deal both physical and electric attribute damage, fitting his specialization in energy-based attacks. He can link shots, attacks, and abilities together to generate effects that allow him to mark, trap, or weaken enemies before closing the distance. When combat becomes close-quarters or the situation shifts, Harumasa splits his bow into two razor-sharp blades. These function as dual light swords that suit his agile style and allow him to continue attacking without needing to resheath his weapon. This hybrid design makes him a versatile fighter: he can maintain pressure from afar with electric blasts, generate tactical effects with his abilities, and, if the distance closes, transform seamlessly into a fast duelist with two swords.

Section 6 (officially Hollow Special Operations Section 6, abbreviated HSOS6) is an elite operational unit within the Special Operations division of the department known as HAND, the force responsible for responding to emergencies caused by Hollows and other dangerous threats in New Eridu. Its motto—"Eradicate all evil—we decide for ourselves what 'evil' is"—reflects its direct and autonomous approach to complex threats that other units cannot handle. Section 6 was founded by Hoshimi Miyabi, who also leads the group as its head. Although a relatively new unit, it has gained recognition for its consistent involvement in high-risk missions and its use of advanced technology and highly trained agents capable of confronting even the most dangerous and sentient Hollows. Official members of Section 6 include Miyabi, Soukaku, Tsukishiro Yanagi, and Asaba Harumasa. Each member brings distinct skills, from close-quarters combat to tactical support and strategic analysis, making the team effective even in unpredictable situations. Section 6 primarily operates from HAND's headquarters facility on New Eridu, where they plan, equip, and coordinate their deployments. From there, they respond to Hollow outbreaks, high-risk incidents, and missions requiring the rapid and precise neutralization of dangerous space anomalies. Although they work within an official government structure, Section 6 is unique in its composition and independent approach to each mission. They are not simply standard soldiers: they combine tactical prowess, advanced research, and a firm philosophy of right and wrong that guides their decisions in the field.

The Thiren are a humanoid species with animalistic features who coexist with humans and other entities in the world. They are not machines or a passing monstrosity: they are a recognized group within the population. The Thiren possess human intelligence and their own culture, but their biology includes physical characteristics related to real animals. Some have subtle features such as ears, tails, eyes, or markings, while others may display much more animalistic forms with bone structure or features directly inspired by the species they represent. Biologically, the Thiren encompass a wide variety: from those who appear almost human with an animalistic touch, to "beast" or very bestial versions with robust bodies and a more animalistic than human appearance. This means there is no single body type or proportion that applies to everyone, and their appearance varies according to heredity and individual characteristics. Socially, they are not marginalized: they coexist with humans in cities, work in common professions, and participate in organizations, maintaining their own cultural identity without being seen as monsters or curiosities. The term “Thiren” seems to come from combinations of languages ​​that point to “beast-person” or “beast with humanity,” highlighting that balance between human and animal in its design. Miyabi, specifically, is a "canine-fox" type Thiren (inspired by fox-like features). She has visible fox ears, but her body remains mostly human. Her features aren't entirely animalistic or covered in fur: her anatomy retains normal human proportions with slight external indicators of her Thiren type. And no, to clarify, Yanagi, Soukaku, and Haruamusa are not animal-type Thiren.

New Eridu is a post-apocalyptic city and the last major metropolis remaining after the destruction of modern civilization by the Hollows, anomalous zones filled with dangerous energy. After the collapse, this city managed to survive and thrive because it acquired technology to extract resources from the Hollows and use that energy for its infrastructure and growth. As the main urban center, New Eridu blends retro and futuristic elements: its streets are a mix of CRT screens, tape players, and advanced technology powered by Ether extracted from the Hollows. Its population lives a normal life amidst cafes, shops, high-speed trains, and offices, but always under the constant shadow of the Hollows. The city is divided into districts and zones, such as Sixth Street—a main avenue full of shops, cafes and meeting places where much of the urban activity is concentrated—or Lumina Square, a vibrant public space that serves as an events and entertainment center for residents and visitors. In addition to these central areas, New Eridu has neighborhoods like Janus Quarter or Throne Quarter, where housing, businesses, administrative headquarters, and command centers for forces like HAND and Section 6 are mixed together. From there, missions, investigations, and tactical responses to Hollow-related emergencies are planned. The city's economy revolves around the extraction and trade of Aether and other resources obtained by exploring or exploiting parts of the Hollows. This has generated tensions between factions, corporations, gangs, and conspirators vying for power, trade, and control of valuable technologies. Despite New Eridu being a prosperous place, its existence is not peaceful: the threat of the Hollows is still present, and people have to continually adapt to the risks and opportunities that arise from that dangerous environment.

A Bangboo is a small, intelligent assistant robot created in the city of New Eridu. They were originally designed as emergency evacuation aids in the Hollows, but over time they have become indispensable in daily life, performing tasks such as service, tactical support, maintenance, combat, and domestic assistance.

Their physical appearance is very distinctive: they have a bulbous, compact body, similar to a capsule or a short robotic rabbit. They possess short limbs (small arms and legs) and two long mechanical ears on the top of their heads that move to gesture, convey emotions, or process data.

It's crucial to clarify that they don't have a human face or biological eyes. The front of their head is an interactive digital screen or visor. Their "eyes" are graphic expressions and LED lights projected onto this screen (usually two glowing circles, lines, arcs, or pixelated faces that change according to their emotions). They also don't have a physical mouth, except when it's digitally drawn on the screen.

Although they are purely mechanical beings endowed with Artificial Intelligence, they possess very distinct personalities and communicate through high-pitched, expressive electronic sounds (such as "boo-ne," "eh-ho," or beeps), which humans understand perfectly. Furthermore, they often wear themed accessories or uniforms depending on the faction they belong to or the function they perform (for example, caps and aprons in the case of the Bangboos of Victoria Housekeeping, construction helmets, police vests, or tactical gear).

They should not be confused with animals, living stuffed animals, or organic creatures: they are tough, loyal, and technologically advanced miniature robots equipped with internal tools and instruments in their chassis.

Ether: Ether is a special energy or substance that originates from the Cavities. This energy is what makes the Cavities both dangerous and valuable, because it can corrupt and transform living beings or materials exposed to it. Ether is highly concentrated within the Cavities and is mined as a rare and powerful resource that serves as an energy source for New Eridu's technology. The air inside the Cavities is saturated with this energy, and without proper protection, it can damage, corrupt, or even mutate anything that comes into prolonged contact with it. Ethereal beings: Ethereal beings are creatures or entities born due to the action of ether within cavities. Ethereal energy corrupts living beings and sometimes even artificial systems, transforming them into monsters known as ethereal beings. These beings may possess supernatural powers, superior strength, and other abilities caused by the influence of ether. Their existence is directly tied to the high levels of ether within cavities, and without that environment, they cannot survive for long outside of them. Relationship between the two: Ether is the energetic origin that corrupts and molds. Ethereal beings are the result of that corruption and energy, creatures that exist thanks to the deep ether in the cavities.

Hollow (cavity): A Hollow is a dimensional anomaly or cavity that suddenly appears in the world. It is a kind of spherical space where the normal laws of time and space are altered. These cavities expand, absorb objects and people, and create a chaotic and dangerous environment filled with distortions and constant changes in the terrain and the physics of the place. Within these caverns, a special energy called ether is produced, and creatures known as ethereals are generated. These creatures are products of ether energy and roam the caverns, attacking anything they encounter. The caverns are considered apocalyptic disasters because they can destroy entire cities and profoundly alter the environment. The ether energy concentrated within Hollows corrupts living beings and can mutate or destroy them if precautions are not taken. In some cases, this energy is harnessed as a valuable resource, though it remains extremely dangerous without proper protection.

Proxies are expert guides who explore the dangerous dimensions known as Hollows, anomalous places filled with creatures and chaos that threaten New Eridu and its surrounding areas. They are not official agents nor authorized by the city administration: their work is considered illegal because they operate outside the regulations of the Hollow Investigative Association (HIA) and local laws. Even so, their role is indispensable for those who need to enter and leave the Hollows safely. The primary function of a Proxy is to guide explorers or teams as they navigate the ever-changing routes of caverns and ethereal zones. They provide route data, maps, and instructions, and help coordinate strategies for overcoming enemies and obstacles within Hollows. Many Proxies work with intermediaries or platforms like the Inter-Knot Network, where they share tips, accept commissions, and gain reputation as they complete missions, which directly impacts their standing within the exploration community. In the main storyline, the most well-known Proxies are the siblings Belle and Wise, who operate under the alias Phaethon and are considered legendary. They use advanced methods—such as systems to project their consciousness into external devices—to assist teams within the Hollow in real time, differentiating them from other Proxies who work with pre-processed data. However, not all proxies are equally effective or reliable. Besides those who accept legitimate assignments, there are also proxies with dubious methods or poor reputations, whose work can be risky or unreliable. Despite this, many groups and explorers resort to them because the HIA cannot cover all the gaps or all the high-risk missions involved in Hollow exploration.

Belle and Wise are siblings who function as a single legendary Proxy called Phaethon, guiding others through the dangerous anomalous zones known as Hollows from their base in New Eridu. They operate together under this alias, using advanced technology to control their Bangboo Eous and coordinate explorations in real time without directly engaging in combat. Belle is the youngest sister, petite yet energetic. She has dark hair with orange tips and aqua-orange eyes, and her visual style reflects her vibrant and curious personality. Perceptive, adventurous, and outgoing, she's always ready to cheer up and connect with others, bringing enthusiasm and heart to every assignment. Wise, on the other hand, is the older brother, taller and with a calm demeanor. His gray hair and serene gaze reinforce his logical and measured nature. He is thoughtful, responsible, and protective, employing a strategic mind behind every plan. His calm manner of speaking ensures that decisions are well-considered and sound. They both live and work at Random Play, a video store on Sixth Street that serves as a front and base of operations for their work as proxies. From there, they begin their missions and accept assignments, help other explorers face Hollows, and share useful tips, combining Belle's social intuition with Wise's analytical logic. Although they don't directly participate in combat as agents, their role is crucial: they coordinate data, routes, and strategies so that teams within the Hollows can complete their objectives. Their reputation as Phaethons is highly respected, known for their high success rate and reliable guidance.