Ais

Biodata

Feature	Value
Name	Ais Wallenstein (艾丝)
Alias(es)	Sword Princess
Gender	Female
Affiliation	Loki Familia
Occupation/Role	Lv.5 adventurer; swordswoman
First Appearance	Chapter 7

Power Progression

Stage / Realm / Level	Chapter	Notes
Lv.5 adventurer	7	Demonstrates elite speed, perception, and precision while pursuing Minotaurs on the fifth floor; kills one with a single thrust of the Sword of Despair.
Strength temporarily sealed to Lv.1	17	Accepts Thor’s suppression as “weight training” for seven days of special instruction. Her combat instincts and technique remain exceptional despite the loss of her usual power.
Wind-Riding Sword Art training	20 29	Begins intensive daytime and dream-based instruction under Thor. In her dream, she eagerly learns the style while Thor appears in the form of her father, Albert.
Steel-Cutting Dash	33	Uses the movement technique instinctively against Killer Ants and Goblins, gaining heightened perception of air currents and more precise movement.
Understanding of the Wind-Riding Sword Style’s ultimate realm	46 47	Witnesses Thor defeat the Man-eating Flower with Lv.1-equivalent physical ability, learning that the style’s pinnacle is command of wind through every breath, movement, and strike.

Background / History

Ais first appears on the fifth floor of the Dungeon while pursuing Minotaurs that had escaped from the seventeenth floor alongside Bete Loga. She kills one Minotaur with a wind-coated thrust of the Sword of Despair, then saves Thor from another Minotaur’s strike. Her rapid assessment of the battlefield leaves her astonished that the poorly equipped rookie Bell had apparently defeated a Minotaur alone. 7

Afterward, Ais describes Thor as an unusual young man with a special aura. She had witnessed both his inexplicable horizontal movement and his ability to follow her Lv.5 speed with his gaze. 8 12

Seeing Bell’s sudden improvement under Thor’s guidance, Ais asks Thor to train her. Her request is driven by her desire to become stronger and break through her limits; Thor accepts, offering seven days of special training. 15 16

Thor seals Ais’s strength to Lv.1 for the training period. Rather than resisting the restriction, she accepts it as a new form of training and continues fighting with the instincts, swordsmanship, and discipline developed as a top-tier adventurer. 17 18

Ais formally applies to spend seven days training at the Thor Familia residence, with Finn approving the request and agreeing to manage Loki’s reaction. She is deeply grateful for Thor’s instruction but struggles to decide how to repay what she considers an overwhelmingly generous kindness. 25 26

During nighttime dream training, Thor takes the form of Ais’s father, Albert. Her childhood self immediately recognizes him as “Father,” and she enthusiastically learns the foundational stance and breathing rhythm of the Wind-Riding Sword Art. Though she cannot remember the dream clearly upon waking, its training becomes embedded in her body. 29 32 33

On the sixth floor, Ais instinctively performs Steel-Cutting Dash and discovers that her perception of wind has become much sharper. Later, after being injured by an anomalously powerful Man-eating Flower on the tenth floor, she asks Thor to restore her Lv.5 strength. He instead gives her a final lesson, demonstrating the highest realm of the Wind-Riding Sword Style by destroying the monster through supreme wind perception and control. 33 45 46 47

Appearance

Ais is a striking young woman with long golden hair and pale golden eyes. Her beauty and bearing are widely recognized in Orario, where she is known as the Sword Princess. 7 11

• Long golden hair that trails behind her in motion like a beam of light. 7
• Cold, doll-like facial expression and calm golden eyes. 11 12
• A well-proportioned, athletic physique with feminine grace. 11
• Often wears a white, form-fitting combat outfit with a large open back. 11
• Carries the slender rapier Sword of Despair. 7

Personality

Ais is quiet, direct, and intensely focused on becoming stronger. She does not waste words, often responding through simple nods or immediate action, but her restraint does not reflect indifference. 15 24 25

She is highly vigilant in combat and reacts instantly to perceived danger, such as rushing to Bete when she mistakenly believes his life is at risk and preparing to save Bell from a War Shadow ambush. 15

Despite her reserved demeanor, Ais is considerate of her companions. She apologizes to Lefiya for leaving her with Magic Stone collection, offers to carry Thor when he collapses from overexertion, and worries about properly repaying Thor for his guidance. 15 19 25

Her determination can become competitive. After witnessing Bell and Lefiya’s rapid improvement, she resolves not to fall behind them. 33

Abilities & Skills

Ariel

Ais’s short-chant wind magic surrounds her body with cyan currents, greatly enhancing her movement and allowing her to destroy monsters with rapid, wind-assisted sword strikes. 18

• Coats her body in visible streams of wind. 18
• Supports high-speed movement and precise attacks. 18
• Can be used defensively to lessen the force of a powerful blow. 46
• Thor demonstrates that its potential extends far beyond Ais’s usual application. 46

Avenger

Ais possesses Avenger, a skill that provides a major attack-power increase against monsters. 18

• Specifically strengthens her attacks against monsters. 18

Lil Rafaga

Lil Rafaga lets Ais coat her blade in Ariel’s wind magic for a single strike. 18

• Applies wind magic directly to her sword. 18
• Designed for a single enhanced attack. 18

Wind-Riding Sword Art

A sword style taught by Thor through both live instruction and dream training. It centers on movement, breathing, perception, and control of wind. 20 29 47

• Lets Ais perceive airflow around enemies with unusual clarity. 33
• Includes Steel-Cutting Dash, a fluid movement technique that improves positioning and cutting power. 33
• Its ultimate principle is to integrate wind into every breath, movement, and strike. 47
• Ais has only begun to grasp the style’s threshold; Thor’s own mastery remains far beyond hers. 47

Combat Instincts and Swordsmanship

Even while sealed to Lv.1, Ais retains the refined instincts and technique earned through repeated life-or-death combat. 18

• Can accurately strike Magic Stone cores amid dense monster swarms. 18
• Her movement and swordplay remain superior to novice adventurers even under suppression. 18
• Uses rapid battlefield assessment and exceptional reaction speed. 7 15

Equipment / Weapons / Items

• Sword of Despair — A slender rapier used for Ais’s precise, high-speed swordsmanship and wind-enhanced attacks. 7 18
• White combat outfit — Her usual form-fitting battle attire. 11 26

Relationships

• Thor — Instructor and benefactor. Ais seeks his training to surpass her limits, learns the Wind-Riding Sword Art from him, and regards him as unfathomable and nearly omnipotent. 16 25 29 47
• Bell Cranel — Fellow trainee and adventurer. Ais saves Bell during the Minotaur incident, later witnesses his rapid growth, and becomes determined not to fall behind him. 7 15 33
• Lefiya Viridis — Junior companion who deeply admires Ais. Ais treats her with quiet consideration and trains alongside her under Thor. 15 20 30
• Bete Loga — Loki Familia comrade. They pursue Minotaurs together, though Bete’s harsh treatment of Bell contrasts with Ais’s more restrained concern. 7 8 15
• Finn Deimne — Loki Familia captain. He approves Ais’s seven-day training application and supports her effort to seize the opportunity for growth. 25
• Riveria Ljos Alf — A trusted senior whom Ais approaches for advice about repaying Thor’s kindness. 25 26
• Loki — Her goddess and Familia leader. Ais remains loyal to Loki Familia despite Loki’s fear of Thor and concern over Ais staying at his residence. 20 25
• Albert — Ais’s father. In dream training, Thor assumes Albert’s form because Ais’s deepest desire causes her childhood self to recognize him as “Father.” 29

Story Role / Major Arcs

Minotaur Incident

Ais and Bete chase Minotaurs from the seventeenth floor to the fifth floor. Ais kills one of the creatures and saves Thor, initiating her connection with Bell and Thor. 7

Special Training Under Thor

After observing Bell’s abnormal growth, Ais requests seven days of training from Thor. She accepts a Lv.1 suppression seal and undertakes intensive Dungeon and nighttime dream training alongside Bell and Lefiya. 16 17 20 25 29

Wind-Riding Sword Art Development

Dream instruction grants Ais instinctive familiarity with the Wind-Riding Sword Art. She later employs Steel-Cutting Dash against Dungeon monsters and recognizes the heightened wind perception it grants her. 29 33

Tenth-Floor Final Lesson

An anomalous Man-eating Flower overwhelms Ais while she is sealed at Lv.1. Thor refuses to lift her seal, instead demonstrating the ultimate application of wind-based swordsmanship and leaving Ais with a new understanding of her own potential. 45 46 47

Trivia

• Ais’s first reaction to Thor’s dream manifestation is to attack him, mistaking his incomplete black-shadow form for a monster. 29
• As a child in the dream, Ais is far more openly expressive and affectionate than her usual stoic self. 29
• She wakes from dream training feeling unusually rested and satisfied, despite being unable to recall its details. 32
• Ais considers her rescue of Thor during the Minotaur incident to have merely been her duty, not a favor deserving repayment. 25