Jayce

Biodata

Feature	Details
Name	Jayce (杰斯) 6
Species/Race	Viltrumite 47
Gender	Male
Affiliation	Viltrumite Empire; secretly betrayed the Empire twenty-six years before revealing it to Sparta 47
Occupation/Role	Recruit Company captain and commander of Sparta’s squad 6 21
Status	Imprisoned and unconscious after being overwhelmed by dozens of Viltrumites in a Viltrumite prison 91
First Appearance	Chapter 6

Background / History

Jayce formerly served as a bloodthirsty Viltrumite conqueror who enjoyed terrorizing and killing conquered peoples. During one conquest, he encountered an alien woman who remained unafraid despite knowing what he had done. He initially spared her only to force her to witness further atrocities, but her courage gradually changed him. They later lived together, fell in love, married, and had a son, Jason. Jayce identifies this transformation as the reason he betrayed the Empire twenty-six years earlier 47 48.

By the time Sparta enters the Recruit Company, Jayce is an experienced captain over five hundred years old. He instructs the recruits that their duties are loyalty to the Empire, loyalty to Emperor Algor, and absolute obedience to orders, while warning that personal strength is their only dependable protection in isolated missions 6 10.

During the conquest of Big Mouth Star, Jayce coerces the Big-Mouth Emperor into submission and later executes him after his surrender. He treats the planet’s destruction as a warning to other worlds, yet quietly overlooks Sparta’s deception in sparing hidden civilians and conceals Sparta’s exceptional performance in his official report 19 20 21.

As the Anti-Viltrum Alliance war escalates, Jayce warns the recruits that combat brings fear, helplessness, and death rather than glory. He leads the squad through planetary destruction, battles against Alliance forces, and heavy casualties, including Luke’s death 22 31 35 36.

Jayce repeatedly fights alongside Sparta. He is severely injured while confronting the Rock Giant, but Sparta refuses to abandon him and ultimately defeats the creature. Later, Jayce spars Sparta personally, relying on five centuries of combat experience before conceding defeat 40 41 55.

After the war, Jayce brings Sparta to visit Linnalisa and Jason. His reunion with Linnalisa is affectionate, but Jason rejects him over decades of absence. Jayce accepts the blame and explains that his distance was meant to protect his family 70 71 72.

Jayce is later taken from the Recruit Company under the apparent pretense of promotion. He is instead imprisoned, where he discovers Jason badly injured in a cell. He attacks the guards to protect his son, but dozens of Viltrumites eventually overwhelm him and leave him unconscious in another cell 89 90 91.

Appearance

Jayce is a lean, muscular Viltrumite with a small mustache beneath his philtrum. His appearance remains unchanged over the three years Sparta’s squad spends on extended missions 35 66.

• Keeps his hair and clothing neat when preparing to reunite with his family 69
• Usually wears a Viltrumite combat uniform while on duty 21
• His mustache is visibly stained with blood during the Alliance battle 35

Personality

Jayce is disciplined, authoritative, and pragmatic as a commander. He prevents pointless fights among recruits, enforces military order, and evaluates missions according to whether the objective has been completed rather than moral considerations 7 20.

His experiences have made him unusually realistic about war. Unlike recruits who romanticize battle, Jayce openly speaks of dead comrades, fear, and the possibility that he himself may not survive 22 26.

Although he remains capable of cruelty and extreme violence, Jayce is fundamentally unlike a conventional Viltrumite. He protects Sparta from unwanted scrutiny, respects fallen comrades, values his family, and ultimately places Jason’s safety above obedience to the Empire 21 36 47 90.

Abilities & Skills

Viltrumite Physiology

Jayce possesses the physical abilities associated with Viltrumites, including flight, immense strength, durability, and combat speed.

• Launches himself into the air with enough force to create a powerful gale 9
• Flies through space and communicates telepathically with his squad during travel 8
• Can physically restrain recruits such as Clayton with one hand 7
• Participates in the destruction of an entire planet by diving through its core with the squad 31
• Continues fighting despite severe injuries, including blood loss and damage to his face and limbs 35 55 91

Telepathy

Jayce can communicate directly into others’ minds without speaking aloud.

• Directs Sparta and the recruits telepathically during their first space mission 8
• Uses telepathy to speak after losing his tongue and suffering catastrophic jaw injuries during his spar with Sparta 56

Combat Experience

Jayce has approximately five centuries of combat experience and uses technique, timing, and adaptability to compensate for opponents with greater raw strength 10 55.

• Fought alongside Sparta against the Rock Giant, drawing its attention while Sparta searched for weaknesses 40
• Temporarily increased his strength through rage after believing Sparta had been killed 40
• Used grappling, evasive movement, elbows, knees, and targeted strikes to nearly overcome Sparta in their spar 55
• Acknowledged Sparta’s victory after their final exchange shattered his fist and arm 55

Command and Tactical Judgment

Jayce is a seasoned field commander who prioritizes discipline, survival, and mission completion.

• Limits the squad’s descent speed on Big Mouth Star to avoid unnecessary destruction before negotiations 8
• Warns recruits that future enemies may outnumber them by hundreds or thousands to one 26
• Orders Sparta away from the battlefield center because he considers him too valuable to risk 60
• Briefs the squad on the Oranti rebellion and its suspected Alliance involvement 85

Equipment / Items

• Technological wristband — Used for mission coordinates, holographic records, and communication 8 19
• Viltrumite combat uniform — Standard replaceable military clothing supplied by the Empire 21

Relationships

• Sparta — Captain and later trusted confidant. Jayce recognizes Sparta’s potential, conceals his exceptional record, protects his secret regarding Big Mouth Star’s civilians, and later admits his own betrayal of the Empire to him 21 47. Their battlefield trust develops into mutual respect; Jayce eventually loses a sparring match to Sparta and predicts he may surpass every living general 40 55 56.
• Linnalisa — Wife. Her courage caused Jayce’s moral transformation, and their reunion after five years apart is intensely affectionate 47 70.
• Jason — Son. Jayce is proud of Jason’s perseverance but fears for his safety; he deliberately shields him from brutal Viltrumite traditions and later attacks prison guards to protect him 48 74 90.
• Clayton — Subordinate whom Jayce repeatedly disciplines. Jayce condemns Clayton’s disrespect toward Luke and regards him as far less valuable than Sparta 36 60.
• Luke — Fallen squad member. Jayce fights beside him during the Alliance war and rebukes Clayton for mocking Luke’s death 35 36.
• Digger and Kaden — Surviving members of Jayce’s squad. Jayce treats them as disciplined soldiers and later leaves them unaware of his imprisonment 60 91.

Notable Quotes

“The strength in your hands will be the only weapon capable of saving you.” 6

“I betrayed the Empire.” 47

“I lost.” 55

Trivia

• Jayce originally believed Sparta’s intellect suited him to becoming a civilian general, but later withdrew that judgment and predicted Sparta would become an exceptional military general 6 56.
• Sparta’s “Hard-working Sparta” reputation reminds Jayce of Jason, who trains constantly despite being physically weak for his age 48.
• Jayce has no living parents and is alone within the Empire when Linnalisa and Jason are away 82.