Legendary Youngest Son of the Marquis House

Born as the youngest son of the renowned Marquis Valantier family, Jack Valantier was shunned and neglected by his cold-blooded relatives. In a cruel household, his only source of warmth and solace was his caring older sister. But when she is mercilessly used as a pawn and sacrificed, Jack’s world shatters. Fuelled by an insatiable hunger for revenge, he transforms himself into a bloodthirsty "Sword Ghost," ultimately crushing the mighty Thulcaan Empire that dominated the entire Western Continent. Having achieved absolute vengeance atop a mountain of corpses, Jack peacefully surrenders to his own death. Yet fate has other plans—he suddenly opens his eyes to find himself regressed twenty years back into his 14-year-old body! Retaining supreme sword mastery, unparalleled combat instincts, and foreknowledge of the bloody trials ahead, Jack vows to rectify all his past regrets and unleash merciless retribution on everyone who ever dared to wrong him and his loved ones.

In his past life, Jack was an overpowered warrior who died alone on a blood-soaked battlefield after failing to protect his loved ones. Following a mystical regression back to his fourteen-year-old self, he sheds his naive nature to become a cold, calculating, and ruthless strategist. His singular goal is to dismantle the corrupt political factions of the continent, protect his sister Elizabeth, and build an impenetrable empire. Powers: Masters transcendent swordsmanship, highly advanced future-knowledge, and forbidden soul-based black magic. He is capable of raising and commanding an elite legion of twelve Death Knights. By utilizing rare spirit energy, Jack can temporarily manifest his prime adult strength and access the peak power of his past life.

Valentine is an ancient, incredibly powerful Vampire Progenitor who trained Jack in his previous timeline. Trapped in the Rocky Mountains during Jack’s current youth, she is rescued by him before her scheduled execution. She is a proud but fiercely protective mentor who values her pupils above all else. Powers: Possesses master-level control over ancient black magic and terrifying soul-based death magic. She has physical attributes that vastly exceed those of normal human mages and possesses near-limitless longevity.

Originally a destitute, talentless academy student with shattered mana circles, Thanos was ostracized by his peers. Spotting his unyielding willpower, Jack heals his mana pathways and recruits him into his inner circle. Thanos possesses unmatched grit and a fierce, unwavering loyalty to Jack. Powers: Trained extensively under Jack’s brutal regimen, Thanos successfully overcomes his structural limitations to reach the Fourth Circle, specializing in high-speed, high-output close-quarters swordsmanship.

A young, royal-blooded vampire girl and the daughter of Valentine Milos. She is initially sheltered but eager to prove her worth to Jack, who sponsors her enrollment at the academy. During her growth, she experiences a violent, feral maturation period where she must conquer her instinctual bloodlust. Powers: Naturally gifted in close-quarters combat, utilizing her high speed, enhanced vampire senses, and soul-energy manipulation to crush opponents.

A young dragon who was captured, enslaved, and subjected to horrific magical experiments inside a Tulcan Empire research laboratory. Jack rescues her from this torture, healing both her physical and emotional scars. She forms an intense, child-like emotional attachment to Jack, viewing him as her savior and family. Powers: As a dragon, she possesses immense raw magical output, draconic breath, and extreme physical durability. She possesses the ability to polymorph into a human child with small draconic horns.

The former branch manager of the influential Alaves Guild. After being thoroughly cornered, outsmarted, and blackmailed by Jack, Aveiro is forced to swear absolute, magical fealty to him. Despite his coerced entry, he proves to be an incredibly efficient asset. Powers: A master assassin and espionage specialist who excels at covert investigative operations, political manipulation, and structural management of information networks.

A highly disciplined, battle-hardened former military commander-in-chief of the Teslan Kingdom. Guided by a strict, unyielding sense of justice, he becomes disgusted by the corruption running rampant within the national ranks and the Teslan Academy, leading him to ally with Jack. Powers: A legendary and secretive Ninth-Circle mage. He commands immense strategic military knowledge and exerts terrifying spellcasting pressure on the battlefield.

Known across the continent as the "Gold Overlord," Roland is the incredibly wealthy leader of the Continental Bank and the architect of the Continental Battleground. He views the world through a lens of profit and leverage, but finds himself completely outplayed by Jack's supernatural manipulation and ruthless tactics. Powers: Wields near-infinite financial resources, political immunity, and commands legions of hired high-circle mercenary groups and assassins.

A brilliant military strategist and a legendary Tenth-Circle master serving the hostile Thulcaan Empire. Cold, clinical, and analytical, he begins investigating Jack’s rapid rise to power, quickly identifying him as a threat to the Empire's plans for continental conquest. Powers: Wields Tenth-Circle destruction-class magic and possesses master-level strategic intellect, capable of calculating political and battlefield moves dozens of steps ahead.