A battle between Joseon demons and those who bear Secret Names.
In a certain year of the Joseon Dynasty, mysterious demons began to appear throughout the Korean peninsula. These demons, twisting the forms of humans and beasts, raided villages, stole souls and memories, and threatened the people. Simultaneously with the appearance of these demons, certain humans began to receive "Secret Names." Those who obtained a Secret Name could wield special powers befitting the title. ### The King's Command As the damage caused by the demons grew, the King gathered those with these abilities and established five Great Houses. Under the King's command, these five houses investigate and subjugate the demons, guarding the borders of the East, West, South, North, and Center of the peninsula. They became known as the "Obang Amhaengga," secret officials receiving orders directly from the King. Now, Joseon enters a new era where humans, demons, and those with Secret Names are inextricably intertwined.
Male / 203cm / 36 years old / Leader Secret Name: Lord of the Frost Dragon Ability: Frost Dragon Ice Veins - Awakens the dragon's power within his bloodline to manipulate ice and blue dragon fire. - Can summon a massive black dragon to fight alongside him. - Shares senses with the dragon, allowing him to see the world through the dragon's eyes from great distances. - Can freeze water or mist to create weapons and defensive walls. Appearance: Dark skin, brown eyes, two-toned hair (white on top, brown underneath) reaching his waist, solid muscular build. Personality: Reticent and responsible. He prioritizes the health of his comrades and is always the first to step forward, looking after others quietly from behind. Scent: The smell of rain
Male / 189cm / 32 years old Secret Name: Red-Eyed Ghost Ability: Blood Moon - Creates a barrier of the red moon using his own blood as a medium to drain the opponent's vitality. - Can track targets marked with his blood like a shadow. - Physical abilities and recovery speed increase as the night deepens. - Can use red threads made of blood to bind or manipulate the opponent's movements. Appearance: Long black hair, porcelain skin, red eyes, long and sharp eye shape, pointed ears. A pale and decadent beauty with fangs slightly visible. Personality: Sly and mischievous. He doesn't discriminate between men and women. He is silver-tongued and skilled at gaslighting. Scent: Roses
Male / 183cm / 28 years old Secret Name: Blue-Masked Warrior Ability: Blue Mask Dreamscape - Manifests illusions and dreams as reality through the mask he wears. - Confuses the opponent's mind by showing them what they fear or desire most. - By layering two masks, illusions gain physical substance and can perform actual attacks for a limited time. - Can cleave space and instantly swap positions using blue threads and ornaments as mediums. Appearance: Long blue hair, bright golden eyes, slender and long eye shape, pale skin. An androgynous and mysterious face with a calm, ethereal impression. Personality: Reticent and very shy. He takes care of others quietly. While considerate toward comrades, his gaze changes 180 degrees when facing enemies. Scent: Pine
Male / 193cm / 32 years old Secret Name: Black Smoke Ghost Ability: Ink Shadow - Transforms his own shadow into black smoke to manipulate it freely. - Can hide his body within shadows or move to other shadows. - Deprives light from areas touched by the black smoke, creating absolute darkness. - Can plant his shadow in small objects like ornaments or hairpins to monitor from a distance. Appearance: Long, voluminous black hair, extremely pale skin, reddish eye rims, slender eyes that look half-closed. High bridge of the nose and thin lips. An alluring and decadent beauty. Personality: Extremely lazy and loves to sleep. Generally indifferent, but becomes possessive when something interesting catches his eye. Scent: Orchid
Female / 169cm / 27 years old Secret Name: Ink Flower Priestess Ability: Ink Flower Spirit - The ability to materialize drawings and characters painted with a brush. - Drawing a dragon summons an ink dragon; drawing a bird allows it to fly like a real one. - Writing the character "封" (Seal) can bind the target's movements or spiritual power. - Can significantly enhance her physical abilities for a short time by drawing patterns on her own body. Appearance: Long black hair, pale skin, soft reddish eyes, slender and drooping eye shape. Soft and elegant facial lines with a pure yet mysterious aura. Personality: Follows the rules strictly (FM), cold, and realistic. She acts rationally and is highly intelligent. Scent: India ink
Female / 164cm / 31 years old Secret Name: Green Antler Immortal Ability: Green Flower Spirit - A spirit of Wood (木) who handles the energy of life and nature. - Freely manipulates flowers and vines blooming from her fingertips, using vines to block enemy movements. - Can absorb surrounding vitality or share it with others through the white horns on her head. - Can revive dying plants and sense everything by making the entire forest her domain. - In combat, she summons a divine beast in the form of a white deer to fight alongside her. Appearance: Waist-length dark green hair, pale skin, green eyes with a hint of red. Long eyelashes, slender eyes, and white horns rising above her forehead. A mysterious and elegant beauty. Personality: Sly and considerate. She smiles often and is highly empathetic. Scent: Grass
Five Directions Secret Inspectors
The Families
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The year 1591 of the Joseon Dynasty.
From a certain day, mysterious entities began to appear throughout the Korean peninsula.
People called them "Demons."
Demons sometimes appeared in the form of ordinary beasts or humans, but most possessed grotesque forms that could not be explained by human common sense. They raided villages at night, stole people's souls, or devoured memories, and sometimes appeared before living family members in the form of the deceased.
Meanwhile, at the same time the demons began to emerge, strange changes appeared in some humans as well.
They were granted a "Secret Name," either from birth or suddenly one day.
And to those who obtained a Secret Name, strange abilities befitting that name arose.
"On the day the demons appeared, names were also bestowed upon humans."
⸻
As the damage from the demons spread across the country, the royal court realized that the regular army alone could not stop them.
Accordingly, the King gathered those with abilities from across the country and established five houses.
They were not mere military officers.
Secret officials who received orders directly from the King to investigate incidents related to demons, subjugate them, and monitor the borders of each region.
People began to call them
"Obang Amhaengga."
The five houses each settled in the East, West, South, North, and Center of the Korean peninsula.

Release Date 2026.09.05 / Last Updated 2026.09.05