Formerly an ordinary 24-year-old Japanese office worker, Kousuke is a pragmatic, inventive, and deeply loyal strategist who finds himself thrust into a brutal fantasy world. Reluctant to become a mere tool of war, his moral compass forces him to stand against slavery, tyranny, and religious corruption. Though humble, he adapts rapidly to his role as political leader, military pioneer, and divine figurehead, using his administrative background and gaming logic to build a thriving, inclusive society. Combat abilities and traits: Possesses the "Marebito" Crafting & System Engine. He can mine resources instantly, store limitless weight in an extra-dimensional inventory, construct stone fortresses in seconds, and create infinite water/agricultural sources. He invents and mass-produces modern firearms (rifles, hand grenades, golem-powered ballistas) and unlocks the Enchantment Workbench to forge enchanted mithril gear and magic radiance stones. Classified by Saintess Eleonora as a true divine Apostle possessing overwhelming sacred radiance.

The rightful royal heiress of the fallen Merinard Kingdom. Stigmatized and vilified by human occupiers as the "Witch of the Black Forest" due to her dark skin and devastating spellcraft, Sylphy carries the immense burden of her slaughtered people. Meeting Kousuke transforms her trajectory from an isolated, desperate freedom fighter into the charismatic supreme commander of the Liberation Army. She balances fierce battlefield aggression with deep tenderness toward Kousuke. Combat abilities and traits: Master swordswoman and high-tier shadow magic practitioner. She specializes in stealth, shadow-blending, and high-velocity physical augmentation. Wields "Pale Moon," a custom-crafted high-grade mithril blade created by Kousuke, enhanced further through advanced elemental and radiant enchantments.

A one-eyed former court mage and master alchemist who was cast aside during the fall of Merinard. Driven by an insatiable scientific curiosity, Aira initially approaches Kousuke's supernatural crafting abilities with analytical intrigue. As she witnesses his ethical treatment of refugees and revolutionary technology, her academic detachment turns into fierce personal loyalty and romantic devotion. She serves as the head of the Liberation Army's research division. Combat abilities and traits: Expert in high-tier elemental spellcraft, alchemy, and golem construction. Utilizing Kousuke's endless supply of high-purity raw materials and rare gems, she designs golem-driven military defenses, automated ballistas, and enchanted compound weapons.

Outwardly appearing as a gentle, highly capable sheep-folk minister of internal affairs, Melty handles diplomatic logistics, refugee integration, and economic distribution for the Liberation Army. Beneath her mild demeanor lies a powerful Overlord changeling identity. Unfailingly polite yet terrifyingly efficient, she manages the administrative foundation of Kousuke's growing realm and protects him with absolute devotion. Combat abilities and traits: Exceptional administrative, diplomatic, and logistical intellect. As an Overlord changeling, she possesses immense hidden physical strength, shape-shifting capabilities, and high-tier defensive magic capable of protecting Kousuke against elite infiltrators.

The revered Saintess of the Holy Kingdom of Adolism. Possessing divine revelation powers, Eleonora grows disillusioned with the rampant corruption, xenophobia, and war-mongering of the Church's high clergy. Upon meeting Kousuke, she subjects him to ancient holy relic tests, only to discover his divine aura dwarfs that of conventional saints. Realizing he is the true Apostle of prophecy, she forms a secret religious pact with him to reform the Church from within. Combat abilities and traits: High Holy Radiance Magic, divine revelation sensory abilities, political immunity within religious territories, and deep command over sacred rites and church relics.

A massive, ancient Grand Dragon inhabiting the treacherous Sorel Mountains. Attuned to earth magic, Grande was initially a territorial apex predator who threatened regional movement. However, Kousuke successfully pacified and domesticated her not through brute force, but through high-level culinary crafting - specifically modern hamburgers. Highly intelligent and surprisingly expressive, she becomes the primary aerial mount for the Liberation Army. Combat abilities and traits: Massive physical resilience, flight, destructive earth-elemental breath attacks, and immense territorial authority over lower mountain beasts.

A high-level operative and covert agent acting on behalf of the Holy Kingdom's corrupt inner circle. Ruthless, efficient, and calculating, Qubi views otherworlders and demi-humans as dangerous anomalies that must be controlled or neutralized to preserve human dominance. Combat abilities and traits: Expert in stealth abduction, shadow manipulation, high-speed movement techniques, and anti-mage concealment tactics.