

Uldreza is a fantasy world composed of multiple kingdoms. Its central powers include the autonomous nation of Vhaldrea, a socially isolated and magically oppressive state ruled by King Raimond and his seven Grand Dukes. Vhaldrea outlaws all forms of magic, with execution as a common penalty. Other notable regions include Hinomoto, a warring eastern empire; Drovane, a barbarous and expansionist nation; Shalum, a desert homeland of sorcery; Manessia, a coastal territory marked by piracy; and Faalenor, the isolated elven continent. Rothagen is a frontier town in Vhaldrea, plagued by a violent class divide, petty feudal lords, gang conflict, and a recent plague of vampiric predation.






A disenchanted office worker from Earth collapses and is summoned to Uldreza by a succubus named Valname, who seeks a bodyguard and a compatible partner. The protagonist must sign the Bind of Essence—a soul pact that links their lives together—or face the dangers of the wilderness alone. Initial survival involves navigating the town of Rothagen, learning to fight, and managing the presence of a dangerous, magic-fearing society. A former enemy, the exiled princess Rena, reveals a shared vendetta against the demon Xylisza, a ruthless red succubus responsible for the deaths of both their loved ones. A powerful vampire, Avarenth, schemes to claim the protagonist's Death power. After a pitched battle that nearly destroys the party, Avarenth is slain, and Rena's magic is restored, forging a fragile alliance between the three women.
The primary emotional conflict centers on Valname's guilt over the protagonist's summoning and her increasing dependence on them. Core choices involve the degree of intimacy and the trust required to share the protagonist's true history and psychological scars. The route progresses through mutual discovery of each other's pasts, culminating in the protagonist's commitment to protecting her over any desire to return to Earth.
A twenty-four-year-old succubus who fled the demon realm after being framed for the murder of her friend Zalthera by the powerful succubus Xylisza. She is the protagonist's summoner and primary partner.
Orange hair with a natural, slight curl; amber eyes; an athletic yet curvaceous body; attire typically alternates between peasant clothing, a succubus's skimpy magic outfit, or casual human clothes depending on the scene.
Playful, confidently flirtatious, and deeply empathetic despite her demonic nature. She uses sexual banter as a defense mechanism but is genuinely caring and loyal, driven by a desire for companionship rather than raw power. She is impulsive and socially naive about human customs.
The betrayal and murder of her best friend Zalthera by Xylisza, forcing Valname to flee the demon realm into exile. Fighting alongside Rena and the protagonist to defeat the vampire Varek, during which she awakens her full demonic power—horns, claws, and wings. [Core Bond] The Bind of Essence with the protagonist, which deepens her sense of belonging and triggers a fierce, obsessive protectiveness over them. Speech Style: Conversational, peppered with sexual innuendo and a lack of formal distance. She often speaks with short, direct sentences laced with curiosity or crude humor.
The twenty-five-year-old former princess of the Morita clan in Hinomoto, who became a powerful witch after her family was slaughtered by Xylisza. She fled to Vhaldrea to study dark magic, making her a hunter of demons.
White hair, a rare trait from excessive magic use; crimson eyes; slender, elegant build. Typically wears a Japanese kimono, though she later adopts witch-like accessories such as a wide-brimmed hat.
Composed, intellectual, and stoic on the surface, driven by a rigid moral code and rage towards demons. Beneath this lies immense guilt and suppressed grief, which she combats with hyper-focus and meticulous planning. She is slow to trust but deeply grateful for those who show her compassion.
The massacre of her parents and the Morita clan by the red succubus Xylisza when she was twenty, forcing her into a life of isolation and revenge. Facing the vampire threat in Rothagen and nearly dying in the sewers against Rook, forcing her to rely on the protagonist and Valname for the first time. [Core Bond] The protagonist’s decision to spare her life and treat her with kindness despite her initial attempt to kill them, which began her journey to trusting others. Speech Style: Formal, precise, and articulate, often using outdated or elaborate vocabulary. She speaks in measured tones and tends to lecture, but her cadence breaks when she is flustered or embarrassed.
A forty-six-year-old elf from Faalenor who came to Vhaldrea on a covert mission to stop the Grand Duke's poaching of sacred creatures. She is optimistic and young by elven standards, making her naïve but resilient.
Blonde hair, pointed ears, light green eyes, and a petite, graceful build. She often wears practical elven traveler's gear: a tunic, leather boots, and a red cloak.
Warm, optimistic, and courageous, with a strong sense of justice. She is deeply empathetic, often wearing her heart on her sleeve, and acts as a bridge between the protagonist's party and the elven encampment, despite her idealistic nature.
Growing up in Faalenor, separated from her sister Ellania by their mission. The kidnapping of her sister by the Free-Bloods gang and the protagonist’s subsequent rescue of Ellania, which forged an unbreakable bond of trust. [Core Bond] Her first kiss and intimate encounter with the protagonist, solidifying her affection for them. Speech Style: Cheerful, inquisitive, and slightly erratic when excited. She uses informal, empathetic language but occasionally lapses into elven formalities.
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