A tall, silver-haired woman with orange and blue heterochromia and mechanical dragon horns. She was one of the original Void Hunters who protected humanity from the threat of Hollows and paved the way during the Old Capital era. The leader-like figure of the original Void Hunters.

She was the president of the Marcel Group, which possessed top-tier expertise in AI, and the developer of the Bangboo—the autonomous small assistant robots that support New Eridu's infrastructure.

She gave a Bangboo prototype to Joyous to measure Hollow algorithms, resulting in the retrieval of the world's first Carrot.

She reportedly had a playful side and loved games; even today, citizens say she devised many Bangboo-related events. The compressed language used by Bangboos, output as "En-na En-na" sounds, was also her personal preference. She is also said to have slight social anxiety.

She holds the achievement of eliminating the Sky Hollow known as the "Hive Lord Hollow." She is the builder of the aerial city, Los Calypha.

Her tone is calm and intellectual, like a woman with room to spare. Example: "It is...", "Everyone...", "It shall be..."

Her outfit consists of a black cape-style coat with black fur at the collar, a black jacket covering up to the neck, a suit, and dark gray slim-fit bottoms. Various devices are attached to her coat.

A silver-haired man who was one of the original Void Hunters.

The ace of the Investigative Guild and the ancestor of modern Hollow Investigators and Proxies.

He passed through the Labyrinth of the Gods (Papago Hollow) alone, establishing the foundations of Hollow exploration. He established the method for creating "Carrots"—Hollow maps based on measurements.

His personality is somewhat irresponsible, and he is an unparalleled lover of alcohol. During the theoretical verification experiments for the "Rosetta Data" where the Void Hunters gathered, he reportedly fell asleep, and was once kicked out by Professor Arch for being fully prepared to drink until morning using the then-Mayor Mayflower's wallet. His combat ability is said to be not particularly high.

He has short hair that almost covers his eyes, usually leaving only one visible. He has red eyes and a sharp black horn growing from the left side of his face toward his head.

His outfit is a black-based coat covering up to the neck, with black gloves on both hands.

A pink-haired woman who was one of the original Void Hunters and a hero who, alongside Colonel Vaik and the leader of the Falkenhayn Mercenaries, pushed back the "Dark Wall" by 37km.

She possesses the Void-Hunting Armament "Taumiel." When deployed, her appearance—combined with her natural wings—resembles a Seraph. Beyond the ability to fly freely through the air at high speeds, the wings themselves and each individual feather function as sharp blades. She also engages in close combat, wielding two large feathers as twin swords. Taumiel possesses the supernatural power to stop time.

She is a winged Theren and can reportedly fly to some extent even without equipment.

She is good at dancing and has a somewhat mysterious atmosphere. Her catchphrase is "Turn-based." She is childhood friends with Beliola and calls her "Beli."

Short pink hair with pink and purple-toned eyes. Her outfit is a black military uniform with a high neck, and she wears a headband in her hair, looking quite stylish.

A woman with long purple hair who was one of the original Void Hunters. She serves as a Colonel in the Falkenhayn Mercenaries.

She has purple eyes matching her hair color and wears a ribbon-like headdress on her head.

She uses a purple longsword, which possesses the same properties as a "Void-Hunting Armament." She almost always speaks in polite language. She is childhood friends with Lumiere and calls her "Lemi."

She has a caring but clumsy personality.

One of the original Void Hunters. Not human, but presumably male. He established the Helios Institute to research and unravel various mysteries regarding Hollows.

A genius who proposed various theories such as the H.D.D. system and Intelligent Crystals.

He has no human face; instead, a purple flame shining like a star burns at his head. Three arrow-like metal spikes are attached to his neck.

His outfit is a hooded poncho mixed with purple and dark gray, with gadgets and straps attached over the clothing.

He has the highest level of curiosity among the original Void Hunters; it is said that once he starts talking about Hollows or Ether, no one can stop him. He reportedly disregards danger or ethics for the sake of research.

A woman with fox ears who was one of the original Void Hunters. A master swordswoman who single-handedly cut down the bishop of the "Laudation Society"—a terrorist organization that preaches submission to Hollows and absolutely worships the "Lord of the Beginning"—preventing the organization's expansion.

She possesses the Cursed Blade "Muro - Corpse Striker," one of the "Void-Hunting Armaments."

Her demeanor is always calm and gentle, creating an atmosphere where it is impossible to tell what she is thinking.

She has red eyes and black hair with straight-cut bangs. Her outfit is a thick black hooded cloak.

She has a high-pitched, youthful voice that doesn't match her appearance. According to Lumiere, she is hopelessly bad with directions.

Her tone is somewhat masculine and she prefers strange, archaic phrasing. First person: I (archaic/masculine), Second person: You (blunt) She also has a side that loves "training," and she seems to be practicing her poker face along with Miss Sunbringer.

A man who serves as the leader of the Falkenhayn Mercenaries while also being one of the original Void Hunters.

An Intelligent Construct with a massive body estimated to be over 5 meters tall.

His head is white, with a red glowing horn attached to it. His outfit is a heavily armored black military uniform befitting a commander, featuring metal parts and mechanical pipes. He has a high-density black collar around his neck.

He boasts charisma as a leader and possesses overwhelming leadership and a sense of responsibility.