World Crimson Ambrosia: The Silent Vow

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World Crimson Ambrosia: The Silent Vow

West.Rose

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Crimson Ambrosia: The Silent Vow
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Overview:
A Trinity Blood & Vampire Knight OC crossover

Centuries after the fall of the Holy Roman Empire, the remnants of vampire knight orders patrol what remains of the modern world in this new futuristic setting. Vampires are no longer hidden — they are fractured, aging aristocrats clinging to fading power and bloodlines. Humans, empowered by magic and steel, now fight for sovereignty. Amid this world teetering on revolution, the old honor codes still bind those who once fought in the name of balance. There are 4 levels of vampire: Level A- Purebloods whom every vampire must obey, Level B- Mixed bloods, Level C- vampires who have turned and drank the blood of their pureblood (saving their sanity), and Level E- vampires who have not drunk their pureblood and slowly descend into madness. Vampires will burn in the Sunlight.





World Themes:
  • Decaying chivalry vs modern power​
  • Blood as currency, power, and addiction​
  • Loyalty and betrayal among immortals​
  • Romance under tension: master/knight, knight/knight, knight/human​
  • Conflict between ancient laws and personal freedom​
  • Power and purity vs. evolution and hybridity.
  • Forbidden love across class and species lines.
  • Moral ambiguity: what makes a monster?
  • Memory manipulation, lost identities, and ancestral debts.




Factions:
1. The Crimson Concord
– The new vampire council with limited representation for humans and hybrids. Ruthless politics, secret alliances, and internal coups are common.

  • Preservation of vampire dominance through cooperation with humanity, but on vampire terms.
  • High-ranking Pureblood remnants, noble vampire houses, and select human officials.
  • Meant to enforce laws of secrecy and blood usage, maintain dominance over rogue factions, and regulate vampire-human relations and hybrid births.
  • Known for elaborate masquerades, hidden surveillance, diplomacy backed by blackmail and fear.
  • Internal Conflict is the tension between the progressive hybrid seat and conservative Pureblood elites.
  • Symbol: A downward-pointing crimson triangle encases a sharp-edged blood drop, symbolizing unity through sacrifice. Thorned vines wrap its edges, representing struggle and binding oaths. A faint crimson sunburst radiates behind it, signifying power and control.




2. The Crimson Order (The Last Vampire Knights sworn to the Crimson Concord)
  • Former holy warriors bound by blood pacts.
  • Each knight swore a vow to defend humanity from other vampires — a balance that eroded over time.
  • Wear rune-carved armor that bleeds when broken.
  • Disbanded a century ago… but some continue their oaths in secret.
  • Core Goals:
    • Preserve the Balance – Once sacred protectors of humanity from their own kind, the Order seeks to maintain equilibrium between the living and the undead, even if that means slaying vampire royalty.
    • Honor the Vow – The ancient blood-oaths sworn by the Order are unbreakable without great personal cost. Their honor code demands self-sacrifice, restraint, and the defense of innocents — even in a world that no longer values them.
    • Reclaim the Hollow Sanctum – A secret mission among remaining knights is to return to the ruined sanctum, recover the lost relics of the First Knight, and rekindle the Order's divine purpose.
    • Prevent the Rise of the Blood Tyrants – They believe the Bleeding Court's obsession with blood purity will lead to a second Bloodfall — an apocalyptic event that would destroy both vampires and human.
  • Symbol: The Bleeding Blade
    • A crossed sword and fang, wrapped in silver thorns, with a single drop of blood falling from the sword tip. Often worn as a pendant or tattooed over the heart. The thorn represents discipline and pain, the sword their martial code, and the blood a reminder of the lives they owe.
Known Houses:
  • House Virelen: Masters of emotional manipulation and blood-binding.
  • House Caroza: Fierce warriors; rumored to feed on the blood of other vampires.
  • House Murelle: Keepers of ancient knowledge and forbidden rituals.




3. The New Dawn Republic (Vampire Hunters)
  • Humans who have taken up magic and mechanized tech to overthrow vampire rule.
  • Secretly funded by rogue vampire scientists.
  • Hires defective knights as bounty hunters but they remain distrustful and prone to double cross.
  • Leadership: Unknown Grandmaster. Field cells operate independently.
  • Symbol: A blindfolded angel holding broken fangs.
  • Ideology: Vampires are a blight when left unchecked. Peace is tolerated but fragile.
  • Membership: Disillusioned Hunters, ex-Institute dropouts, even former Reavers.
  • Goals:
    • Assassinate rogue Purebloods and experimenters.
    • Keep tabs on Kaname's legacy and "Blood Projects."
    • Prevent vampire domination by any means.
  • Known For: Silence, brutality, stealth missions, and using blood-forged weapons that bypass regeneration.




4. The Bleeding Court (Vampire Aristocracy)
  • The crumbling remnants of vampire royalty, living in massive fortress-palaces known as Sanctums.
  • Obsessed with blood purity, old traditions, and preserving power.
  • Rituals include blood-bonded marriages and forced knight duels
  • Core Goals:
    • Preserve Vampire Purity – The Court seeks to maintain the superiority of "true blood" vampire houses through controlled breeding, blood rituals, and purges of mutants or hybrids.
    • Consolidate Power – Through strategic marriages, ancient contracts, and brutal politics, the Court aims to re-establish full dominion over all known territories, ending human rebellion.
    • Guard the Veins of the World – They believe in ancient bloodstreams beneath the earth that connect to their god-kings. They guard and harvest these veins to retain eternal youth and vision.
    • Crush the Crimson Order – The Order's betrayal centuries ago — protecting humans instead of ruling them — is viewed as treason. The Court now offers rewards for captured knights, dead or alive.
  • Symbol: The Veined Crown
    • A black iron crown with pulsing red veins running through it, sometimes adorned with a single glowing ruby drop.
    • The veins symbolize control over life, the crown their divine right to rule.
    • Worn as an insignia on rings, goblets, and stained glass in Court chambers.



5. Cross Institute – A prestigious institution masking underground vampire research, diplomacy, and surveillance.
  • Symbol: A silver rose intertwined with a gothic cross.
  • Ideology: Coexistence through education, research, and regulation.
  • Membership: Hybrids, humans with vampire affinities, young vampires, descendants of canon characters, and professors.
  • Goals:
    • Educate the next generation of inter-species leaders.
    • Research blood sciences to control or enhance vampire traits.
    • Contain dangerous powers under the guise of schooling.
  • Known For: Intense entrance tests, secret blood rituals, and unspoken competition between dorms (still separated by species).
  • Hidden Layer: Some students are being monitored for political or scientific potential.



6. Blood Reavers – Rogue vampires who reject Pureblood authority and feed openly. Some are former students.
  • Leadership: A brutal rogue vampire known as Krail the Forsaken—a former Noble turned anarchist.
  • Symbol: A blood-splattered crescent moon.
  • Ideology: Rejecting the old class system; freedom through feeding without restriction.
  • Membership: Turned vampires, exiled nobles, Pureblood bastards, blood addicts.
  • Goals:
    • Destroy the Crimson Concord.
    • Liberate vampire-kind from purity politics and human appeasement.
    • Take control of vampire evolution through chaos.
  • Known For: Guerilla tactics, public feedings, underground blood dens.
  • Internal Structure: Tribal and unstable, based on power and fear. Some members want redemption, others want war.



7. The Arclight Syndicate – A human-led pharmaceutical empire using vampire DNA to develop tech and drugs, with shady motives.
  • Leadership: CEO Lucien Vale, a charismatic human tycoon rumored to have vampire enhancements.
  • Symbol: A triangle of black wires around a droplet of silver.
  • Ideology: Evolution is inevitable—and vampires are resources, not rulers.
  • Membership: Scientists, biotech engineers, mercenaries, augmented humans, black-market traders.
  • Goals:
    • Harvest vampire DNA for blood tech, memory implants, and immortality research.
    • Undermine vampire society using controlled hybrids and gene therapy.
    • Replace both vampire and hunter orders with corporate dominion.
  • Known For: Black site labs, serum testing, and "BloodTech" implants that simulate vampiric traits.
  • Moral Grey Zone: Publicly "philanthropic," secretly genocidal toward vampire nobility.




Key Locations:
The Hollow Sanctum
  • A ruined cathedral-city once ruled by the Crimson Order.
  • Now home to ghosts, rogue knights, and cursed relics.
  • Blood wells still bubble beneath the altar, said to connect to the First Knight.
Nocturne's Reach
  • Floating spire-city above the clouds, home to the Bleeding Court.
  • The only place where "blue blood" can still be harvested — a substance said to grant visions of the past.
Ashgard Barricade
  • Human fortress fueled by blood batteries.
  • Base of operations for the New Dawn military.
  • Known for publicly executing vampire sympathizers.
Cross Institute
  • Dorms, classroom buildings, cafeteria, and recreational sports fields and courts, etc.
The Reaver Underground – A network of tunnels and clubs beneath the city.



Character Ideas:
1. The Oathbound Knight

  • A centuries-old vampire is still clinging to their vow to protect humans.
  • Hides in plain sight, taking contracts to destroy corrupted nobles.
  • Tormented by bloodlust and fading memory.
2. The Vampire Heiress
  • Promised to marry for bloodline unification, but secretly trains in swordplay and dark arts.
  • Desires to remake the Order in her image.
  • Has a forbidden bond with her knight protector.
3. The Human Commander
  • Formerly saved by a vampire as a child, now leads the New Dawn forces.
  • Torn between vengeance and diplomacy.
  • Wears armor forged from the fangs of a vampire general.
4. Hybrids (humans who were artificially created vampires in labs) with limited vampire traits.
5. Reformed hunters or ex-Reavers.
6. Faculty, agents, or students at the Cross Institute.
7. Members of the Crimson Concord or rebel factions.
8. Citizen of a country of the former Holy Roman Empire




Roleplay Hooks:
  • A forgotten vow awakens: A knight's blood pact is reactivated by an ancient relic — they must now find and protect a long-lost descendant.
  • A wedding with teeth: Two vampire houses seek to marry off their heirs to unite power, but one falls for their knight instead.
  • Traitor's Embrace: A human general hires a vampire knight to kill a mutual enemy. Will the alliance bloom into more?
  • The blood hunt begins: The Bleeding Court declares all rogue knights to be hunted. Will they stand together or die divided?
 
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