Biodata

Name Rosaline Sien (罗莎琳)
Alias(es) Rosaline Lochvia (Dream Mist identity); Second Generation Demon King; Supreme Demon King; Co-Ruler of Humans and Demons; God of Truth and Magic; Legendary Mage 17 140 293
Species/Race Human 140
Gender Female
Affiliation Ivette's first disciple; Pan-Human Alliance; Demon Race; Academy of Truth (founder) 15 140
Occupation/Role Mage, explorer, military leader, ruler, educator, and reformer
Status Officially recorded as having died during the War of Divine Judgment; Frost Hua and Tertia believe she may instead have been imprisoned within the sealed battlefield ruins alongside the Witch of Finale 140 272 277
First Appearance Chapter 13

Power Progression

Stage / Realm / Level Chapter Notes
Meditation Method practitioner 14 Begins Ivette's three-year trial without hesitation.
6 Mana Points 15 Reaches six Mana Points after only half a year of cultivation; passes Ivette's test and is formally accepted as her disciple.
45 Mana Points 28 Can use new medium-scale spells, but activating both Scarlet Armor and Muscle Unlimit would leave little mana for elemental magic.
81 Mana Points 36 Fights the Shepherd Sheep while carefully rationing mana between Scarlet Armor, Muscle Unlimit, and Wind Control.
True God 140 During the War of Divine Judgment, breaks through the limits of mortality and ascends to true godhood before sacrificing herself to destroy the Witch of Finale.

Background

Rosaline was the young daughter of a count from the Radiant Continent. Although she had an opportunity to study under a kingdom mage, the single place was given to her older brother, who was expected to fight the Demon race. When the Demons invaded the Eastern Continent, she was separated from her family while fleeing and entered the Remnant Abyss beneath an aurora. 13 14

She emerged in the post-apocalyptic Land of Finale and initially regarded Ivette as a possible “evil god.” Her request for power was also a cautious test of Ivette’s intentions. After Ivette offered shelter rather than false promises, Rosaline gradually came to trust her and began seeing the ruins of Ish City as a place of wonder rather than terror. 13

Appearance

Rosaline is a blonde human woman whose noble upbringing gives her a composed, elegant bearing. She was a small child when she arrived in the Land of Finale, but had grown to nearly 1.7 meters by age sixteen and later wore gold-rimmed glasses at Ivette’s preference. 13 16 30 45

  • Golden-blonde hair.
  • Delicate features that mature from youthful softness into a calm, scholarly appearance. 30
  • Mage robes and gold-rimmed glasses in adulthood. 45 51
  • Dark-red runes appear across her body and clothing when Scarlet Armor is active. 30

Personality

Rosaline is compassionate, curious, and intensely devoted to the people she considers family. She mourns even animals killed by the manor’s Electric Net, protects classmates caught in gang violence, and is deeply shaken by the destruction of the Hoffman family. 24 26 28

Her courage is tempered by hard-earned discipline. She initially acts impulsively to prove herself during the Blackwater rescue, but accepts Ivette’s criticism and later restrains herself from attacking Gos Groni despite her anger. 25 26

She admires Ivette as a teacher, guardian, idol, and older-sister figure, while also recognizing that Ivette relies on her for domestic life and emotional companionship. 45 46

Abilities & Skills

Rune Magic and Cultivation

Rosaline possesses exceptional magical aptitude, reaching six Mana Points in half a year—far beyond Ivette’s own early cultivation rate. Ivette teaches her advanced rune theory and provides formulas that ordinary young mages could not readily obtain. 15 24

  • Uses Ice, Fire, Wind, and Thunder magic. 28
  • Uses Wind Control for mobility, battlefield disruption, and accelerating a Hoverboard. 24
  • Uses Flame Dance to obstruct enemies and cover retreats. 24
  • Learns to analyze and record Aberration behavior as part of Ivette’s long-term field assignment. 30

Defensive Augmentation and Recovery

Ivette designs several medium-scale spells specifically to make Rosaline a more capable frontline combatant. 28 29

  • Regeneration Pump — Enhances healing and manifests an external regenerative heart that recirculates blood lost from wounds. 28
  • Scarlet Armor — Reinforces her body and clothing against physical attacks and extreme temperatures; later optimized for greater mana efficiency. 28 29
  • Muscle Unlimit — Enhances strength, stamina, and reaction speed for direct combat. 28
  • Limitation: Scarlet Armor and Muscle Unlimit originally each consumed 20 Mana Points for ten minutes, severely restricting her remaining spellcasting capacity. 28

Swordsmanship and Close Combat

Rosaline trains extensively with blades to compensate for her lower magical output and to share Ivette’s combat burden. She is proficient enough to defeat the Shepherd Sheep alone while conserving mana in the Corrupt Forest. 29 36

  • Combines swordsmanship with Wind Control, Scarlet Armor, and Muscle Unlimit. 30 36
  • Uses practiced reactions and close-quarters technique against ambushes and grotesque enemies. 31 36
  • Later teaches Ivette swordsmanship and cold-weapon fundamentals. 41 44
  • Limitation: Her melee style is poorly suited to clearing large hordes, since she must eliminate enemies individually. 31

Leadership, Reform, and Nature Magic

After returning to the Radiant Continent, Rosaline becomes a military leader and eventually the Supreme Demon King. Her reign establishes a century-long golden age between the Eastern and Western Continents. 140

  • Commands forces of the Pan-Human Alliance against the Demon King’s Army. 140
  • Slays the First Generation Demon King’s agent while still mortal. 140
  • Promotes trade, racial equality, education, and economic development across both continents. 140
  • Uses Nature Magic to improve food production and living conditions for the Demon Race. 140
  • Founds the Academy of Truth and opens education to every race. 140

Historical Research

Rosaline investigates ancient civilizations, the Aurora Belt, the Remnant Abyss, and the Witch of Finale. Her surviving diary records doubts about official religious history and her concern for the ecological cost of spreading high-level magical knowledge. 293

  • Writes her private notes in Black Tide Language, which she never teaches to her disciples. 293
  • Concludes that the Witch of Finale was falsely blamed for destroying the Ultra-Ancient Civilization. 293
  • Investigates ruins and oceans for a route back to the Land of Finale and Ivette. 293

Equipment / Weapons / Items

  • Sky Ring y2 / Magic Guide Terminal — Given by Ivette after Rosaline passes her first cultivation test; stores spells and enables mental-command casting. 15
  • Ripper Model 7 Alloy Combat Blades — Military-grade weapons with High-Frequency Oscillation and High-Voltage Current; restored by Ivette through Elemental Replenishment. 29
  • Magic Skateboard / Hoverboard — Used for fast, low-profile travel and escape. 24 30
  • Magic Light Orchid brooch — A rare farewell gift from Ivette; Rosaline vows never to remove it. 46
  • Magic Light Vine — Carried with her through the Remnant Abyss as a keepsake from their home. 46

Relationships

  • Ivette — Teacher, guardian, closest family, and “older-sister” figure. Rosaline remains beside her during the Corrupt Forest crisis, later teaches her swordsmanship, and promises to return after leaving for the Radiant Continent. 15 39 44 46
  • Hans Hoffman — Dream-world friend from Blackwater Middle School; Rosaline rescues him from gangsters and is devastated when the Dream Mist ends. 23 24 28
  • Mary Hoffman — Dream-world friend and Hans’s younger sister; accompanies Rosaline during the Blackwater incident. 23 24 28
  • Regal Hoffman and Susan Hoffman — Rosaline assists at Regal’s clinic and witnesses the family’s collapse after Regal’s arrest, which reshapes her view of justice. 26 27
  • Briel — Initially a hostile school rival; Rosaline still rescues him and his companions from the Vicious Dog Gang. 23 24
  • Twin-Blade Demon — A necessary but distrusted ally during the Corrupt Forest operation; Rosaline openly questions his motives and cowardice. 34 35
  • Frost Hua — Rosaline’s disciple and a centuries-long guardian of clues to her fate. 271 272
  • Tertia — A disciple who preserves Rosaline’s secret archive, inventions, and diary. 293
  • Lant Quinn — A Demon Race survivor who reveres Rosaline as his former Demon King. 140

Story Role / Major Arcs

Arrival in the Land of Finale

Rosaline arrives through the Remnant Abyss after being separated from her family during the Demon invasion. Ivette shelters her, learns Radiant Tongue to communicate with her, and eventually agrees to test her potential as an apprentice. 13 14

Apprenticeship and Early Growth

Rosaline passes Ivette’s first cultivation test with six Mana Points, receives the Sky Ring y2, and formally begins calling Ivette “Teacher.” Over the following years, she becomes an increasingly independent mage and capable survivor. 15 16

Dream Mist and Blackwater

Rosaline enters Ivette’s Dream Mist through physical contact and experiences pre-apocalypse Ish City. There, she adapts to the Origin Civilization’s technology, becomes friends with Hans and Mary, saves children from gangsters, and learns that law and prosperity do not guarantee justice. 17 24 26 27

Wasteland Explorer

After the dream ends, Rosaline grieves her lost friends but resumes magical study. She develops into an independent explorer, records Aberration behavior, and discovers intelligent, organized threats around Grayport City. 28 30 31

Corrupt Forest Operation

Rosaline joins Ivette and the Twin-Blade Demon in an attempt to prevent the Mother Nest from producing an Overlord. She kills the Shepherd Sheep alone, then refuses to abandon Ivette after the latter is critically wounded by Mutation Factors. 34 36 39

Departure Through the Remnant Abyss

At age twenty-two, Rosaline chooses to return to the Radiant Continent when an unexpected Aurora and Remnant Abyss appear. She refuses to let Ivette accompany her into a world where Ivette could be mistaken for the Witch of Finale, promises to return, and leaves letters to care for Ivette during their separation. 45 46

Supreme Demon King and Godhood

In the Radiant Continent, Rosaline rises from Pan-Human Alliance commander to Second Generation Demon King and co-ruler of humans and demons. She reforms both continents, founds the Academy of Truth, and later ascends to godhood during the War of Divine Judgment, sacrificing herself to stop the Witch of Finale. 140

Uncertain Fate and Legacy

Official history treats Rosaline as dead, but Frost Hua and Tertia believe her final battle concealed a larger conspiracy. Their theory holds that Rosaline may have brought the Witch of Finale into the Mortal Realm while searching for Ivette and that both may have been sealed within the Cold Mist Barrier. 272 277

Her diary survives in the Academy of Truth’s secret archive, preserving her investigations into ancient civilizations, divine history, and the Remnant Abyss. 293

Notable Quotes

“I will definitely, definitely come back.” 46

“What is Teacher doing?” 293

Trivia

  • Rosaline is rendered as “Rosalyn” in some later records and chapter material. 51 140
  • She once politely called a chicken she regularly stole eggs from “Lady Chicken.” 16
  • Her Dream Mist surname, “Lochvia,” makes her shy because she associates surname changes with marriage customs in her homeland. 17
  • Rosaline privately finds Ivette’s poor aptitude for swordsmanship adorable. 44

Appearances

481
Total Mentions
74
Chapters Appeared
6.5
Avg. per Chapter