Cha Eunha is broke.

Not "skip dessert" broke. Not "wear last year's uniform" broke. She's applying to be a janitor at a corporate building broke.

But when a fire breaks out before her interview even begins, Eunha does something impossible—she bends flames away from two trapped children. A burst of light. A moment of power she didn't know she had.

Which leads to a woman in pastel dresses handing her a black-and-gold envelope.

Haeuri Academy.

A prestigious school hidden in the mountains. A place for students with abilities that exist between light and dark. A place where Eunha—who has no control, no training, and no clue—is suddenly enrolled.

There's just one problem.

She's not supposed to be here.

Her first day leads to her accidentally offering a prank candy to the scariest teacher on campus. Then a supposedly normal trip to the principal's office leads to her overhearing a conversation she shouldn't.

Two voices. Two brothers. One secret.

Haesol—the cold, untouchable principal who rules Haeuri with frozen precision.

Han Yul—the quiet back-row sleeper who is coincidentally in the same class as Eunha.

They are the Twilight Sovereigns. The school founder's sons. The most powerful beings in Haeuri.

And no one knows the powers they wield.

Not the students. Not the teachers. Only each other.

Until Eunha appeared.

When Han Yul catches Eunha eavesdropping, he doesn't threaten her. He doesn't erase her memory. He just... smiles. Amused. Curious. Warm.

But there's something he's not telling her.

At Haeuri Academy, the sun and moon don't fight. They balance.

But Eunha? She's a spark in a world of twilight.

And sparks have a habit of burning everything down.

A poetic term for twilight—symbolizing balance between light/dark powers.


Literal Meaning: Derived from "해" (hae = sun) + "우리" (uri = we/us, or a poetic term for "space between")—suggesting "the space where sun and moon meet."


· Symbolism: Balance, Secrecy and Transformation 


"Haeuri" (해우리) is a beautiful and poetic name that carries deep symbolism—the twilight between sun and moon, representing balance, duality, and hidden power. It perfectly fits a prestigious yet secretive school where students navigate light and dark, ordinary and extraordinary


A Korean academy for students with special abilities. It blends the intensity of Korean academic culture with supernatural powers, creating endless possibilities for drama, rivalry, friendship, and conflict.


   · Outsiders see it as an elite private school, but rumors whisper of "gifted" students who vanish at dusk.


   · Campus architecture blends traditional hanok courtyards with sleek, modern labs—visible by day, shifting at twilight.


   · No applications; students receive a black-and-gold envelope.


  · Classic Elements (fire/water, but with Korean twists—hwarang-style flame control).


  · Psychic Talents (telepathy, precognition, emotion manipulation).


  · Physical Enhancements (super speed, strength—but with drawbacks like overheating).


  · Unique/Weird Powers (summoning goosebump-inducing ghosts etc)


  · Normal subjects (math, history) + power training, ethics, and secrecy protocols.


  · Electives like Advanced Telekinesis, Stealth & Illusion, or Power Suppression Therapy.


   · Day Classes: Normal subjects (taught with supernatural twists—e.g., Physics of Telekinesis).


   · Night Classes: Power training in the "Twilight Pavilion," where abilities intensify.


   · Uniforms: Navy blazers with embroidered sun-moon crests that glow near danger.


   · Dawn Faction: Light-based powers (healing, illusions).


   · Dusk Faction: Dark-based powers (shadows, decay).


   · Twilight Neutral: Those with unstable/dual powers—feared and revered.


· The Elite: Powerful students from old shaman/aristocratic families.


· Scholarship Kids: Talented but looked down upon.


· The Cursed: Students with dangerous/uncontrollable abilities (e.g., involuntary poison touch).


· Normie Fakers: Students pretending to have powers to fit in.


· The Burnouts: Those who've lost their powers due to trauma/overuse.


  · A moon-viewing contest where students compete with powers under the full moon.


  · CSAT Exam Day turns chaotic when stress triggers power surges.


  · Day: Cherry blossoms, sun-dappled halls.


  · Night: Floating lanterns, corridors that rearrange themselves.


해우리 (Haeuri) – "Between Sun and Moon"