Once the supreme ancient necromancer Archimonde, he reincarnated into the body of Klein Rheinland, a young noble ridiculed as a manaless outcast. Possessing an unyielding, pragmatic mindset forged over centuries, Klein hides his dark nature behind aristocratic charm and ruthless efficiency. He views power not as an end, but as a tool to consolidate control, eliminate traitors, and restore his absolute dominance. Combat abilities and traits: Wields mystic eyes capable of observing and copying complex high-level sword arts instantly; supreme mastery over soul-based necromancy, ectoplasmic manipulation, undead contract binding, and the manaless execution of the secret Meteor Sword technique.

Appearing outwardly as a cheerful, devoted red-haired maid serving Klein, Arin conceals a horrific secret. She is a demonic entity capable of unspeakable flesh-devouring horrors. Her bubbly personal demeanor directly contrasts with her bloodthirsty nature, executing Klein's directives with terrifying precision and total loyalty. Combat abilities and traits: Demonic physical shapeshifting, extreme biological durability, rapid regeneration, psychological terror projection, and high-speed melee carnage.

Young lady of the Polwyvern house and Commander of the elite Blue Holy Spear Knights. Beneath her honorable and disciplined public exterior lies a fanatical obsession with the ancient Sovereign Archimonde. Upon realizing Klein's true identity, she pledges her military might to his cause, serving as a lethal political and martial ally. Combat abilities and traits: Master spear-warrior, expert unit commander, high-grade holy spear techniques, and advanced battlefield tactical command.

The calculating, cold-hearted aunt of Klein and leader of the Rheinland collateral branch families. Driven by insatiable ambition, she conspired with imperial agents to usurp control of the main house. She operates through covert schemes, hired killers, and political manipulation. Combat abilities and traits: High-level political maneuvering, access to vast branch family wealth, network commander of shadow assassin networks (Fallen Leaf Guild).

The legendary 6th Duke of House Rheinland whose resting soul was bound into service by Archimonde within the ancestral tombs. Entering into a mutual contract, the former patriarch serves as Klein's undead vanguard and sword mentor, taking pride in his descendant's terrifying genius. Combat abilities and traits: Death Knight undead vessel, mastery over classical Rheinland sword styles, enhanced supernatural strength, spiritual durability, and tactical sword instruction.

The 7th Duke of House Rheinland and father of Klein. Stiff, proud, and emotionally distant due to Klein's initial lack of mana, Heinkel is nevertheless driven by a strong sense of familial responsibility. When forced to choose between the Holy Order's zealotry and his son's survival, he chooses to defend his bloodline, granting approval for Klein to use necromancy to save the family. Combat abilities and traits: Peak-tier noble swordsmanship, aura projection, immense martial authority, and strategic governance.

The arrogant, hot-headed heir of House Polwyvern and commander of the Garonde garrison. Incapable of accepting defeat at the hands of a "manaless outcast," his fragile ego makes him an easy pawn for Klein's psychological warfare. Combat abilities and traits: Standard martial heavy sword techniques, military command tactics, garrison unit deployment.

A battle-hardened Exarch of the Holy Order with zero tolerance for dark magic. Relentless, fanatical, and analytical, Garrison tracks spectral anomalies and necromantic residue across the province, determined to burn the revived shadow sovereign at the stake. Combat abilities and traits: Sacral divine magic, anti-undead holy aura, radiant sword techniques, ectoplasmic tracing spells.

A deceitful relative from a branch family allied with Duchess Helian. Dalton orchestrated an early assassination attempt against Klein to eliminate him before he could claim any inheritance. Combat abilities and traits: Subterfuge, low-level martial skills, ambush leadership.

A renegade low-tier necromancer operating in frontier mining sectors, responsible for triggering a localized undead outbreak before being eliminated by Klein. Combat abilities and traits: Low-tier flesh reanimation, corpse puppet control.

An excommunicated martial champion put forward by the Cornwell branch during the legal Trial by Combat to slaughter Klein publicly. Combat abilities and traits: Heavy sword martial arts, mana-infused strikes, brutal pit-fighting experience.