Altair

Biodata

Key fact	Detail
Name	Altair Sheffield (阿尔泰尔)
Alias(es)	Lucius Sheffield; The Empress
Gender	Female; formerly lived under the male identity of Lucius Sheffield before fully assimilating the Witch Potion 8 65
Affiliation	Sheffield Family; Twilight Hermit Society
Occupation/Role	Count of the Sheffield Family; inventor, arms manufacturer, and Beyonder
Status	Active 147
First Appearance	Chapter 8: Count Altair

Power Progression

Stage / Realm / Level	Chapter	Notes
Assassin — Sequence Nine	11–12	Consumed an Assassin Potion prepared by Vivian Laurent and became an official Sequence Nine Beyonder. Gained enhanced agility, Eagle Vision, dark vision, stealth, and concentrated striking power. 11 12
Secondary pathways: Spectator, Pharmacist, and The Knower/Omniscient	13	Selected the three secondary pathways through the Spirit Realm Library and consumed their potions. 12 13
Sequence Eight — Instigator, Mind Reader, Beast Tamer, and Archaeologist	28	After fully digesting the Assassin Potion through repeated assassinations, brewed and consumed four Sequence Eight potions. 27 28
Witch	64–65	Drank the Witch Potion in the Spirit Realm Library, endured a physical and psychological transformation, and became a genuine Witch. 64 65
Sequence Six — Joyful Witch	107, 136	Identified herself as a Sequence Six Joyful Witch after a recent advancement that left her unharmed by a werewolf attack. 107 136
Moon pathway — Crimson Scholar	135	Brewed and consumed the Crimson Scholar Potion as part of her parallel-pathway advancement. 135
Astronomer	135	Advanced by observing the stars, then brewed the potion for her new Sequence. 135
Sequence Five — Pain Witch	135	Completed her advancement and gained the Pain Witch’s Disease Domain alongside strengthened witchcraft and physical abilities. 135

Background / History

Lucius Sheffield adopted the identity of Altair Sheffield, the only daughter of Reinhard Sheffield, after receiving help from his uncle-in-law Lev. Lev used a Sealed Artifact to alter the manor servants’ memories, causing them to recognize Altair as their young lady while Lucius became her alias. Altair was subsequently granted the title of Count and inherited the Sheffield Family’s wealth, contacts, and responsibilities. 8

Under Vivian Laurent’s guidance, Altair entered the Beyonder world by drinking the Assassin Potion. Her consciousness later entered an ancient castle in a white Spirit Realm space, where she learned that she was a High-Dimensional Descender with a unique Rank and access to the Library, a structure that records her experiences and permits secondary pathways. 11 12

Altair rapidly adapted to aristocratic life, taking lessons in etiquette, fashion, jewelry, music, painting, firearms, combat, and mysticism. She also began developing firearms and industrial projects through Rheinmetall and Northern Industries, using the Sheffield fortune chiefly to acquire Extraordinary Traits and materials rather than more money. 14 16 20

Her false identity became increasingly precarious as Grellint recognized her as Lucius, and Adam later directly acknowledged both identities. Adam nevertheless offered her protection and a place in the Twilight Hermit Society, which Altair accepted for its access to high-level resources and advancement opportunities. 39 57 58

Appearance

After assimilating the Witch Potion, Altair possesses a fully feminine body. She is described as having fair, delicate skin and amber eyes, and publicly presents herself as a young female noble of the Sheffield Family. 65 103 120

• Eyes: Amber, becoming notably cold and intimidating when angered. 120
• Public attire: Elaborate aristocratic women’s clothing, including corsets, gowns, heels, hats, gloves, parasols, and jewelry. 15
• Identity: Initially maintained a fabricated female identity through memory manipulation; later physically became a Witch. 8 65

Personality

Altair is adaptable, calculating, and highly pragmatic. She quickly learned to navigate noble society, manage the Sheffield estate, negotiate with powerful factions, and turn unfamiliar knowledge into firearms, factories, and other practical ventures. She values Extraordinary Traits and advancement far more than ordinary wealth. 20 76 89

She can be manipulative when it benefits her, such as feigning injury to gain sympathy or using Instigator methods to shape others’ decisions. At the same time, she exercises selective restraint: while acting as an Assassin, she deliberately targeted gang members she considered evil rather than indiscriminately killing civilians. 21 28 42

Despite her confidence and ambition, Altair struggles with adapting to her circumstances and with the implications of her vast knowledge. Adam observes that this knowledge has made her cautious and lacking in self-confidence. 58

Abilities & Skills

Assassin Pathway

Altair’s original main pathway grants exceptional mobility and lethality in darkness.

• Eagle Vision and dark vision allow her to operate effectively at night. 12 21
• Enhanced speed and agility make her lighter, faster, and capable of difficult evasive movements. 12 23
• Stealth and ambush tactics let her disappear into darkness after ranged attacks. 12 21
• Concentrated strikes allow her to focus power into a single devastating blow. 12
• Digesting the Assassin Potion required prolonged role-playing; Altair estimated that it took her roughly three times as long as ordinary Beyonders. 21

Witch Pathway

As a Witch, Altair gained a broad set of offensive, control, mobility, and survival abilities.

• Black Flame — Burns spiritual bodies. 65
• Frost — Freezes bodies and can spread across surrounding surfaces when her emotions destabilize. 65 120
• Curses — Can cast curses through media such as blood. 65
• Corrosive Claws — Close-range offensive capability. 65
• Abyssal Shackles — Control-oriented restraint ability. 65
• Dark Wings — Enables short-distance flight and rapid movement. 65
• Invisibility, Wand Doppelganger, and Mirror Doppelganger — Concealment and survival methods. 65

Pain Witch

At Sequence Five, Altair gained the Pain Witch’s core Disease Domain.

• Disease Domain: Living creatures within fifty meters gradually become infected, progressing from mild symptoms to severe pneumonia and cerebral infarction if exposure continues. 135
• Full-moon manipulation: Can create a localized full-moon state that enhances spirituality, inspiration, and death-related effects; she can also conceal that state and normalize the area’s spirituality. 135
• Her physical abilities, dark spells, curses, potion effects, and Extraordinary Item creation all improved after the advancement. 135

Secondary Pathways

Altair’s three original secondary pathways significantly broaden her skill set.

• Spectator / Mind Reader

  • Reads micro-expressions and observes behavioral details. 13
  • Can discern thoughts through observation and use Mind Reader abilities. 28
  • Her Mind Reader ability was ineffective against Hether Grant. 38

• Pharmacist

  • Produces potions and possesses a healthy form of Spirit Vision. 13
  • Uses her medical knowledge to prepare treatments, including the Silver Moon Pure Toxin Potion. 63

• The Knower / Omniscient

  • Possesses enhanced memory, learning ability, mechanical skill, and the ability to make aqua regia. 13
  • Can infer a building’s age from details such as debris from its walls. 28
  • Uses the Appraiser ability to assess Extraordinary Items. 74

• Beast Tamer

  • Can communicate intent to animals and considers training animals as future Beyonder companions. 28 30

High-Dimensional Rank and the Library

Altair’s status as a High-Dimensional Descender grants access to the Library in the Spirit Realm.

• The Library records her experiences and enabled her to select secondary pathways. 12
• Her Rank prevents True Gods of her Sequence from directly affecting or locating her. 12
• This protection does not extend to Old Ones. 12
• The Library can assist with appraising high-level Sealed Artifacts, though doing so rapidly drains her Spirituality. 74

Engineering and Industry

Altair combines modern technical knowledge with mechanical abilities and enormous family capital.

• Developed improved rifles and New Gunpowder technology. 20 35
• Founded Rheinmetall to trade shares and manufactured goods for High Sequence Extraordinary Traits. 20
• Founded Northern Industries as private Sheffield property. 20
• Designed a remotely controlled, approximately four-meter-tall mech concept intended to move silently. 119
• Uses weapons sales strategically, demanding Extraordinary Traits and materials rather than conventional payment. 76 89

Equipment / Weapons / Items

• Custom rifles and New Gunpowder ammunition — Altair’s principal technological products and assassination tools. 20 21
• Jewelry Box — A Sealed Artifact containing an independent space that can be used separately or swapped with reality; it can also distort and conceal a spatial area. 74
• Crimson Codex: Secret Medicine Chapter — A book given to Altair by Owen Donovan, connected to secret medicine and the Blood Clan. 15
• Sheffield Family treasury — Contains numerous dangerous Sealed Artifacts and Extraordinary Traits, including the Pain Fan and Paradise Lost. 111

Relationships

• Vivian Laurent / Vivian Sheffield — Mysticism teacher, romantic partner, and fellow Witch. Vivian prepared Altair’s first Assassin Potion and remains closely involved in her advancement and personal life. 11 57 66
• Hahn Clayton — Butler and trusted household retainer. Hahn helped establish Altair’s false identity, manages the estate, investigates threats, and assists in sealing Extraordinary Traits. 8 23 27
• Adam — Founder of the Twilight Hermit Society. Knows Altair’s true identity, offers protection and guidance, and assists with her long-term plans. 57 58 146
• Owen Donovan — Count with Blood Clan connections who acts as a mentor in self-defense, firearms training, and security matters. 15 20
• Anastasia Roland — Retired military veteran and Altair’s firearms and combat instructor; later hired as her private coach. 16
• Leif Strauss — Altair’s maternal uncle and a Sequence Four Hunter known as the Iron-Blooded Knight. He provides family protection, support, and advice. 29
• Hether Grant — Noble friend and political adviser who warns Altair against becoming entangled in court succession politics. 22 38
• Vera and Irene — Altair’s personal maids and close household companions. 20 26 42
• Freya Quinn — Housekeeper who later enters an arrangement with Altair to become an Extraordinary. 20 42
• Sauron-Einhorn-Medici — The Red Angel trio, bound by a notarized agreement to work for Altair for ten years in exchange for bodies, weapons, and Extraordinary Traits. 146 147

Story Role / Major Arcs

• Identity fabrication and inheritance: Assumes the name Altair Sheffield, receives the Count title, and becomes responsible for the Sheffield Family’s wealth and influence. 8
• Beyonder education: Becomes an Assassin under Vivian’s instruction, gains the Library, and adds three secondary pathways. 11 13
• Assassin role-play: Hunts criminal gang members in Bexland to digest the Assassin Potion, eventually completing the role-play and advancing. 21 23 27 28
• Industrial expansion: Develops firearms, establishes Rheinmetall and Northern Industries, and positions the Sheffield Family as a major military-technology force. 20 35
• Court and noble society: Attends banquets, the Summer Hunt, and other social events while cautiously avoiding royal succession struggles. 22 38 43
• Twilight Hermit Society: Joins Adam’s organization as The Empress, using its members and resources to pursue higher-level Traits and weapon transactions. 58 60 75 76
• Witch advancement: Assimilates the Witch Potion, later becomes a Joyful Witch and Pain Witch, and develops increasingly dangerous supernatural abilities. 65 107 135
• Red Maid project: Negotiates the controlled cooperation of Sauron-Einhorn-Medici and commissions a new body for Medici through Life Alchemy. 146 147

Trivia

• Altair drew The Fool, The Empress, and Wheel of Fortune during a divination session before later adopting The Empress as her Twilight Hermit Society codename. 26 60
• She uses hidden shareholding in the Bianchi Bicycle Company to preserve the safety and quiet life expected of a minor female noble. 101
• Altair’s preferred reward for business deals is rarely Gold Pounds; she consistently prioritizes rare Extraordinary Traits, potion materials, and advancement resources. 20 76 89