Biodata

Feature Details
Name Leon (里昂)
Alias(es) Lord Demon Lord; Flame King; Prince/Roxsey Colin; Lolo 98 177 463
Species/Race Human 1
Gender Male
Affiliation Demon Lord Territory of Thunderclap County; Colin Family; Academy League
Occupation/Role Demon Lord; ruler and administrator; necromancer; magician; founder of Science 232 595
Status Alive; Peak Grandmaster 595 658
First Appearance Chapter 1

Power Progression

Stage / Realm / Level Chapter Notes
Bronze Soul 8 Initially capped at Level 30; required Faith Points to overcome the bottleneck.
Steel Soul — LV. 31 14 Spent 10,000 Faith Points after preparing player-controlled Skeleton Soldier bodies; raised his Soul Level from Bronze to Steel and broke the Level 30 cap.
Steel Soul — LV. 34 49 Advanced after defeating the Lizardmen leaders Mo Er La Ge and Ze Like.
Steel Soul — LV. 39 79 Continued leveling while fighting alongside a small party in the Maze.
Silver Soul 121 127 Reached Silver less than two months after advancing from Bronze.
Diamond Soul 400 Reached Diamond-level and gained the Butterfly of Myriad Phenomena.
Grandmaster Soul 435 Condensed a Legendary Seed after his Influence Share reached 1.8%.
Amethyst-level Extraordinary Power 457 Broke through the Diamond bottleneck at LV. 131; his Soul Level remained Grandmaster.
Grandmaster Soul — LV. 141 467 Gained ten levels after defeating Ulgos's forces and absorbing prior gains from Kailan.
Grandmaster Soul — LV. 151 563 Demonstrated element control without spell guidance and a perception range of roughly one hundred miles.
Peak Grandmaster — LV. 170 595 Reached the Grandmaster level cap; 15.3% of Os's intelligent beings contributed faith to him.

Background

Leon was born an illegitimate child with ordinary human blood. His mother, Tiffany, died shortly after his birth, while his father was absent for eighteen years. Because he was not born to two Blood Clan parents, he did not receive the First Embrace and was excluded from the privileges of the Colin bloodline. 1 2

He was raised by the Shadow Priest Jeffrey, who regarded him as a hardworking and strong-willed child. Leon chose his own name and spent three years studying at Demon Lord Academy before being appointed a Demon Lord. 3 5

Leon later learned that his father was Roxsey Colin, a prominent Blood Clan figure, and that Caesar Colin was his grandfather. Rather than seek the Colin Family's protection, he initially chose to build his own position and power. 136 137

Appearance

Leon is a strikingly handsome young man whose presence is often described as more sinister and elegant than merely attractive. His obsidian-like eyes resemble those of his mother. 1 9

  • Usually wears simple mage robes and carries a short, willow-like magic wand. 29
  • Projects a deliberately imposing, “boss-like” Demon Lord image before Players and subordinates. 29
  • As Prince Colin, he favors crimson noble dress, a silver-edged cloak, feathered cap, silver-headed scepter, and a sword at his waist. 295
  • His public statue on the Gana Continent was made in his likeness, though it was considered less handsome and gentle than the real Leon. 307

Personality

Leon is composed under pressure and rarely allows provocation to dictate his actions. He remained calm when sent alone to an unfamiliar Demon Lord Territory, confronted the Dragon Family without yielding, and faced the Amethyst-level Zackro despite knowing the difference in their strength. 10 143 258

He is pragmatic, ambitious, and highly skilled at using systems, institutions, and public perception to his advantage. He builds authority through negotiation as readily as intimidation, whether by establishing terms with Thunderclap County's human leaders or rejecting merchant guild demands that could weaken Black Wind Fortress. 114 232

Despite his ruthlessness toward threats, Leon is capable of compassion. He aided injured children entering his territory, chose to improve the lives of refugees and laborers under his rule, and risked resources to improve the Solipsi's harvest in Void Realm 440. 165 177 372

Abilities & Skills

Necromancy and Undead Command

Leon is a necromancer capable of creating, commanding, and improving undead forces.

  • Summoned one hundred Skeleton Soldiers through the Demon Lord Territory core. 14
  • Implanted Players' Soul Mirror Images into skeleton bodies, allowing them to act as his growing force. 14
  • Raised fallen Lizardmen priests as ghouls with Necromantic Spell. 49
  • Uses Soul Extraction on injured monsters to obtain materials and sustain prolonged combat. 160
  • Maintains ghoul sailors who can pass as ordinary humans with minor concealment. 193

Arcane and Dragon Language Magic

Leon is a mage whose primary strengths are Intelligence and Spirit rather than physical attributes.

  • Uses elemental, earth, fire, wind, life, and undead magic in combat. 106 463 552
  • Experimented with Dragon Language Magic after determining that extraordinary power shared a common basis. 54 55
  • Successfully cast the Dragon Language commands “Extinguish,” “Shut Up,” “Kneel Down,” and “Dispel.” 55
  • Used Dispel and a healing potion to save Lumir from a Merman curse. 55
  • Compensates for lower physical attributes through buff magic and prearranged spell combinations. 457

Divine Spark and Faith Power

Leon possesses a Divine Spark linked to You You and can convert faith and influence into power.

  • Used Faith Points to advance from Bronze to Steel without the side effects associated with other methods. 8 14
  • Draws strength from multiple legends and identities, including the Demon Lord, Flame King, Prince Colin, founder of Science, and Son of God of Duskwood Province. 488 595
  • Reached an Influence Share of 15.3% among Os's intelligent beings at Peak Grandmaster. 595
  • Uses faith to cultivate followers, reinforce his authority, and create Legendary Seeds. 435 595

Butterfly of Myriad Phenomena

A Diamond-level ability obtained from the Solipsi Curator.

  • Projects Leon's consciousness into a semi-transparent butterfly. 400
  • Can bypass physical barriers and most passive magical wards. 400
  • Is vulnerable to active spells while in butterfly form. 400
  • Allows Leon to evade close-range threats and observe locations beyond ordinary access. 457

Origin Force and Void Realm Research

Leon is an accomplished theorist of souls, Origin Force, and Void Realm phenomena.

  • Defined the soul as a “string” capable of interfering with reality from the spiritual plane. 359
  • Used Origin Force to influence Void Realm 440 and improve the Solipsi's harvest. 372
  • His interference accelerated the Solipsi's civilization into a church-dominated, steampunk-era society. 373
  • Became Executive Chief of the Void Realm Asset Reorganization Committee. 392
  • Built a growing “Science” faction by fairly distributing research opportunities and resources. 397

Administration, Strategy, and Identity Crafting

Leon combines political calculation with long-term economic planning.

  • Established Safe Zones and VIP services in the Maze through a tacit understanding with Charles and Thunderclap County. 114
  • Built Black Wind Fortress into an industrializing settlement centered on Magic Crystal Cannon production. 232 266
  • Uses the public identity of Prince Colin to negotiate with nobles, form business partnerships, and move through human society. 193 323
  • Maintains multiple carefully separated identities to manage faith, diplomacy, and security. 184 463

Equipment / Weapons / Items

  • Magic Wand — Leon's usual casting focus. 14 29
  • Dragon Bone Staff — Used to activate and access the Dragon God's abandoned spacecraft. 285
  • Storage Ring — Carries equipment, including the Dragon Bone Staff and captured magical items. 285 552
  • Magic Crystal Cannons — A core product of his Black Wind Fortress industry and military development. 136 266
  • Black Iron Adventurer Identification — Registered under the name Lolo to move through Maze safe zones without exposing his identity. 98

Relationships

  • Jeffrey Priest — His godfather and adoptive guardian; raised Leon after Tiffany's death and remained one of his most trusted advisers. 5 9
  • Roxsey Colin — Biological father; initially absent from Leon's life but later intervened to protect him from Zackro. 1 258
  • Tiffany — Leon's deceased mother; Jeffrey notes that Leon inherited her obsidian-like eyes. 1 9
  • Caesar Colin — Paternal grandfather and head of the Colin Family; offered Leon entry into the Blood Clan, which Leon declined. 136
  • Vivian — Half-sister; initially attempted to assassinate him, but later became part of his extended household and sought his guidance. 135 494
  • Mia Padrick — Former academy classmate and political ally; her affection for Leon becomes increasingly open. 121 573
  • Erin Campbell — Princess of the Campbell Principality and wielder of the Light of Legends; she confesses her feelings for Leon while remaining unaware of several of his identities. 214 458
  • You You — Leon's Divinity and system assistant; manages Player-related functions and helps him perceive the underlying “code” of extraordinary power. 16 54
  • Sarah — Loyal Demonkin attendant and protector; accompanies Leon in combat, travel, and daily life. 353 658
  • Taff — A young dragon under Leon's care; grows rapidly while remaining protective and temperamental around him. 480 494
  • The Players — Leon's player-controlled undead troops, quest recipients, workforce, and experimental population. 14 31

Story Role / Major Arcs

Appointment as Demon Lord

After three years at Demon Lord Academy, Leon is unexpectedly appointed Demon Lord and sent alone to his territory because the Teleportation Array cannot accommodate a larger escort. He accepts the assignment despite lacking the conventional demonic bloodline and strength expected of a ruler. 3 10

Founding the Great Cemetery's Player Force

Leon turns the Recording Crystal into a bridge to another world, creates Skeleton Soldier bodies for Players, and uses the resulting Faith Points to make his first major breakthrough. This establishes the Player force that becomes central to his territorial expansion. 8 14

Conquest of Silverpine and the Maze

Leon defeats Lizardmen leaders, raises undead servants, coerces Silverpine Town's sheriff and Adventurers' Guild president into serving him, and begins transforming local institutions into extensions of his authority. 48 49

The Flame King Legend

By using Priest Matt, religious services, inexpensive amulets, and carefully constructed stories, Leon develops the legend of the Flame King among human communities. The identity becomes an important source of faith and influence separate from his reputation as a Demon Lord. 61 70 177

Black Wind Fortress and Demon Politics

Leon industrializes Black Wind Fortress, develops Magic Crystal Cannon production, and asserts direct control over its merchant guilds and local leaders. His growing standing eventually brings him into the Demon City Council and wider conflicts with the Dragon Family. 232 266 304

Prince Colin's Surface Persona

Under the identity of Prince/Roxsey Colin, Leon enters human high society, attends Thunder City banquets, negotiates with noble families, and expands commercial interests through servants such as Pang Ke. 193 196 323

Academy League and the Science Faction

Leon enters the Academy League, challenges established magical theory, investigates Void Realm 440, and attracts scholars to his Science faction. His influence culminates in leadership of the Void Realm Asset Reorganization Committee. 371 373 392 397

Rise to Grandmaster

Leon gains the Butterfly of Myriad Phenomena at Diamond level, condenses a Legendary Seed, and later breaks through to Amethyst-level power. His legends and faith networks continue to multiply across Hell, the Gana Continent, and human territories. 400 435 457 488

Peak Grandmaster and Expanding Influence

Following the collapse of Blood Purgatory and a major revolutionary victory, Leon reaches Peak Grandmaster. By this point, his influence encompasses territorial rule, religious legends, scientific institutions, and political networks across Os. 595

Notable Quotes

“One person can have many identities. Describing me as a noble is too biased.” 463

“The Light of Legends is just a weapon after all. What can really threaten us must be the person who uses the weapon, not the weapon itself.” 184

Trivia

  • Leon chose his own name. 5
  • Isaac IV's notes were written in Chinese, leading Leon to believe the former ruler was a fellow countryman. 4
  • His adventurer alias, Lolo, was created for undercover travel through Maze safe zones. 98
  • Leon declined Caesar Colin's offer to join the Blood Clan, choosing to pursue power through his own methods instead. 136