A battle-hardened veteran who experienced the complete ruin and slaughter of House McLain in his previous life. Returning ten years into the past, Logan operates with ruthless pragmatic foresight, tactical brilliance, and absolute familial devotion. He systematically eliminates future threats, revamps his domain's economy, masters lost combat doctrines, and orchestrates geopolitical upheavals. When the ungrateful crown attempts to purge him, he readily discards fealty to lead an open revolution. Combat abilities and traits: Master of the Divine Sword Secrets, time-acceleration sword techniques, sensory perception mastery, and 5th Force Core Superhuman Aura manipulation. Commands revolutionary tactical engineering including Liberatio repeating explosive crossbows and golem warfare.

The solemn, honor-bound Patriarch of House McLain. Initially bewildered and frustrated by Logan’s eccentric spending and sudden aggression, he gradually recognizes his son’s genius and selflessly yields military and political leadership to Logan to secure the family's survival and glory. Combat abilities and traits: Experienced conventional swordsman and commander; skilled in defensive battlefield coordination and traditional knightly force arts.

Known throughout the continent as the kingdom's greatest swordsman and an Archduke of Grandia. Crippled by chronic internal injuries until Logan synthesizes a revolutionary cure, Felix takes Logan as his sole disciple out of deep gratitude and mutual respect. He serves as Logan's political shield, martial guide, and ultimate ally even during royal estrangement. Combat abilities and traits: Peak Aura Master / Superhuman; wields peerless continent-tier sword aura, spatial cutting techniques, and crushing physical pressure.

Known as the "Rose of Steel," Eileen is an unyielding martial prodigy from House Floyd who enters the McLain Knights to forge her martial path. Her fierce independence, sharp tactical intellect, and combat drive earn Logan's profound respect, evolving their strategic alliance into a deep romantic partnership and official engagement where she manages domain affairs and defensive lines. Combat abilities and traits: High-tier Force Core knight; excels in high-speed rapier and longsword combat, agile footwork, and front-line commanding.

A brilliant dwarf mage who relocates his magic tower to McLain territory after recognizing Logan's vision. Blunt, hardworking, and deeply practical, Clayton directs massive terraforming infrastructure projects, irrigation dams, mana-vein excavations, and the rapid construction of wartime fortresses. Combat abilities and traits: 5th-Circle (advancing to 6th-Circle) Earth Magic; specialized in large-scale golem crafting, architectural transmutation, seismic collapse spells, and defensive barrier generation.

In the original timeline, Victor was an abused slave who became the infamous, bloodthirsty "Noble Slayer." Intercepted and freed by Logan along with his sister Ria, Victor is provided with safety, respect, and purpose. In return, he pledges absolute, fanatical loyalty to Logan and House McLain, becoming one of their most terrifying vanguard commanders. Combat abilities and traits: Wielder of a unique, ominous Grey Aura; savage physical durability, berserker instincts, and lethal close-quarters dual-blade mastery.

Originally the overlooked Third Prince who formed a clandestine pact with Logan to seize the crown during the succession civil war. Upon taking the throne as the 42nd King of Grandia, his insecurity, political paranoia, and terror of House McLain's unmatched military might consume him, prompting him to stage a regicide frame-up against Logan. Combat abilities and traits: Royal political authority; commands the Royal Guard, kingdom treasuries, and secret court intelligence networks.

The tyrannical regional overlord of the Southwest who concealed his status as a high-circle mage to control regional nobles. Driven by greed to annex the flourishing McLain domain, his escalating hostilities trigger open warfare with Logan, culminating in his downfall. Combat abilities and traits: Concealed 5th-Circle Mage; combines high-tier offensive elemental bombardment with strategic fiefdom governance.

Known as the "Tempest Blade," Wicken is a renowned superhuman mercenary and commander fighting on behalf of hostile royalist coalitions during the civil war. Arrogant and lethal, he represents the immense gap between ordinary knights and true Aura Users until countered by Logan's tactical ingenuity. Combat abilities and traits: 5th Force Core Superhuman; commands tempest-grade wind aura blades capable of slicing through siege engines and battalions.

The prodigal rising star of the Ares Empire, widely proclaimed as the future "First Sword" of the continent. Vainglorious and contemptuous of foreign martial artists, he attempts to humiliate Logan in imperial court duels, only to suffer a humiliating defeat and permanent disfigurement. Combat abilities and traits: Imperial force arts prodigy; high-speed kinetic blade strikes and aggressive aura projections.

A seasoned veteran commander who initially clashes with House McLain during the turbulent civil war campaigns. After witnessing Logan's honor, tactical supremacy, and superhuman growth, he formally pledges his blade to House McLain as a high-ranking field commander. Combat abilities and traits: High-tier Force Core knight; expert in heavy shock-cavalry leadership, defensive line stabilization, and broadsword combat.