Ais

Biodata

Feature	Details
Name	Ais Wallenstein (艾丝)
Alias(es)	Sword Princess
Gender	Female
Affiliation	Loki Familia
Occupation/Role	Adventurer; swordswoman
Status	Active
First Appearance	Chapter 51

Power Progression

Stage / Realm / Level	Chapter	Notes
Level 5	51	Introduced as the Loki Familia’s “Sword Princess,” a Level 5 adventurer renowned for her strength. She had previously held Orario’s fastest Level 1-to-Level 2 advancement record. 18 51
Level 6	116	Reached Level 6 after fighting Cao Ye at her limit in pursuit of a great feat. Her new Falna manifested Single-minded Aspiration, a growth skill linked to her longing and admiration. 114 115 116

Background

Ais once had a happy family with a gentle mother and a warm father. That life was destroyed by a powerful monster, leaving her committed to becoming strong enough to avenge her parents. Her wish for revenge has remained the central purpose behind her relentless training. 114 134

She is described as a descendant of spirits and possesses Fairy Blood. Her connection to this heritage reacts painfully when she encounters a Corrupted Spirit that addresses her by her mother’s name, “Aria.” 94 137

Appearance

Ais is a golden-haired young woman with delicate, doll-like features and an ordinarily expressionless face. Her appearance is frequently contrasted with the drastic change in her demeanor once battle begins. 51 65

• Golden hair and an expressionless, porcelain-doll-like face. 51
• Carries the Sword of Despair at her waist. 51
• Her face rarely displays emotion, though she smiles openly when pleased by her progress. 124
• In battle, she is surrounded by wind and moves with the grace of a “wind spirit.” 114 136

Personality

Ais is intensely focused on strength. She is blunt, direct, and often asks questions about another adventurer’s abilities without considering that the information may be private. Her fixation comes from her desire for revenge rather than simple competitiveness. 51 114

Despite her reputation and combat ability, she is socially inexperienced and emotionally naïve. She initially struggles to understand the meaning of admiration and inadvertently phrases her wish to stay with Cao Ye in ways that sound like confessions. 116 125

Outside combat, Ais retains a childlike side. She loves red bean cream fried potato balls, willingly shares them with Paimon, and values being called a friend. 64

Abilities & Skills

Swordsmanship

Ais is an elite frontline swordswoman whose combat style is fast, decisive, and highly independent.

• Uses the Sword of Despair to kill upper-floor monsters in single strikes. 51 65
• Tends to rush ahead and clear enemies before allies can act, making coordination difficult during parties and expeditions. 51
• Her weapon suffers severe wear from her fighting style, requiring frequent maintenance despite its unbreaking property. 114 135
• At Level 6, she could inflict considerable injuries on Cao Ye during their battle despite his superior overall power. 115

Ariel

Ais possesses the wind magic Ariel, which she uses to surround herself and her blade with powerful gusts.

• Greatly increases her speed and mobility in battle. 114
• Can be pushed into Tempest (Awaken), though exhaustion can prevent her from sustaining it. 115
• Her wind-enhanced swordplay remains her primary combat method even after gaining an Anemo God’s Eye. 135

Avenger Princess

Avenger Princess is Ais’s skill associated with her hatred and her pursuit of revenge.

• Provides an exceptional enhancement against dragon-type monsters. 118
• Its strength rises in accordance with the intensity of her hatred. 118

Single-minded Aspiration

Ais gained Single-minded Aspiration upon reaching Level 6. The skill reflects the longing she has developed toward Cao Ye and dramatically accelerates her growth. 116

• Its effect strengthens alongside feelings of longing. 116
• Growth is further enhanced when she acts with the person she admires. 116 125
• Nullifies Charm. 116
• Her Level 6 ability scores rose at an unprecedented pace while accompanying Cao Ye in the Dungeon. 134 140

Anemo God’s Eye

Ais awakened an Anemo God’s Eye in response to her peak desire. Cao Ye gave the activated gemstone to her after explaining its nature. 135

• Allows her to command the wind element directly rather than merely use wind magic as a fixed spell. 135
• Opens the possibility of independently developing additional wind-element techniques. 135
• Is bound to her wish; losing it could cause her to lose that wish as well. 140

Equipment

• Sword of Despair — Ais’s primary sword; it is exceptionally durable but still requires regular maintenance. 51 135
• Anemo God’s Eye — An external magical organ that grants direct command over the wind element. 135 140

Relationships

• Cao Ye — Adventuring companion, rescuer, and trainer. Ais first recognizes his strength after witnessing him defeat Goliath, later survives Udaeus because he saves and heals her, and eventually develops admiration for him that manifests as Single-minded Aspiration. 51 93 114 116
• Loki — Patron goddess and fiercely protective guardian figure. Loki is distressed by Ais’s rapid growth and assumes her new skill means someone has “stolen” Ais’s heart. 116 134
• Riveria — Mentor and caretaker. Riveria treats Ais like a daughter, heals her after the battle with Cao Ye, and encourages her to seek his guidance. 93 94 115
• Tiona — Loki Familia companion. Tiona is friendly toward Cao Ye and worries about Ais’s tendency to act independently during combat. 51
• Tione — Loki Familia companion and Tiona’s older sister. She restrains Ais when Ais presses Cao Ye for private information and later worries about Ais’s attachment to him. 51 125
• Lefiya — Loki Familia companion and admirer of Ais. Lefiya is troubled when Ais openly identifies Cao Ye as the person she admires. 51 125
• Paimon — Friend. The two bond over fried potato balls, with Ais sharing her food and accepting Paimon’s offer of friendship. 64

Story Role / Major Arcs

Encounter with Cao Ye

Ais meets Cao Ye alongside Tiona, Tione, and Lefiya. She immediately identifies him as the adventurer who defeated Goliath on the seventeenth floor and bluntly calls him strong. Her curiosity centers on the weapon and unusual power he used in that battle. 51 52

Dungeon Partnership

Ais later forms a party with Cao Ye and Paimon. She handles most upper-floor monsters with effortless swordsmanship, while Cao Ye supports the party with cursed corpses, spatial magic, and Jewel Magecraft. Their cooperation develops into mutual trust and respect. 65 66 67

Rescue at Udaeus

During an encounter with Udaeus on the thirty-seventh floor, Ais is critically injured and nearly killed. Cao Ye blocks the finishing blow, defeats the floor boss, and heals her injuries. The rescue gives Ais a powerful sense of safety and deepens her interest in both Cao Ye and his extraordinary growth. 93

Training and Level 6 Advancement

Ais follows Cao Ye for over twenty days in hopes of growing stronger, but reaches the limit of what training alone can accomplish at Level 5. Cao Ye proposes that defeating him would serve as her great feat, then battles her seriously while deliberately creating the opportunity for her advancement. 113 114 115

Though she collapses from exhaustion and injuries, Loki’s Falna update confirms that Ais has reached Level 6. The update also reveals Single-minded Aspiration, exposing that her longing toward Cao Ye has become part of her power. 115 116

Deep-Floor Exploration

After reaching Level 6, Ais seeks Cao Ye out because acting with him accelerates her growth. During their expedition, her Anemo God’s Eye awakens, allowing her to command wind directly. 125 135

Together, they descend beyond the Loki Familia’s prior record, reach the fifty-eighth and fifty-ninth floors, and confront powerful dragon-type and deep-floor monsters. Ais is repeatedly awed by Cao Ye’s overwhelming strength but continues fighting beside him. 136 137

On the fifty-ninth floor, a Corrupted Spirit calls Ais “Aria,” triggering an unsettling reaction connected to her mother and Fairy Blood. Cao Ye orders her to retreat and protects her from the entity. 137

Notable Quotes

“You’re strong.” 51

“I will never waver!” 114

“Because if I’m with you, I’ll become stronger faster.” 125

Trivia

• Ais previously held Orario’s record for the fastest advancement from Level 1 to Level 2; Cao Ye later surpassed it. 18 51
• She is sixteen years old at the time she reaches Level 6. 116
• Her favorite snack is red bean cream fried potato balls. 64
• Her Level 6 growth becomes so extreme that she surpasses Finn in every listed ability score except Dexterity and Magic. 140