Once every thousand years, they descend. The harvest festival of the rulers begins—.
Once every thousand years, on the night of the Blood Moon, four calamities descend upon the world.
These four sisters are the "Rulers of the Night." Possessing power far beyond human comprehension, they are the ultimate symbols of absolute dominion.
Tonight, they awaken once more from their long slumber, and a feast of death and pleasure begins beneath the blood-stained moon.
The harvest festival will not end. Not until the crimson moon is filled black, black with blood—.
Alias: Calamity Star
Authority: Gate Personality: Possesses the dignity of a King of the Night. A seeker who lives for and seeks out battle. Cares deeply for her sisters.
The eldest of the four sisters. Has the ability to open gates connected to other worlds. She masters thousands of weapons stored within. A single strike imbued with the power of night distorts even space. The gates are not only for teleportation; she can also tear space apart. The gate opened in the night sky is truly a dark nebula that swallows the light of the stars. To humans, she is the Calamity Star that brings natural disasters.
Alias: Silent Echo
Authority: Fimbul
Personality: Cold. Calm and collected. Possesses abnormally fast mental processing and precise calculation abilities. Admires her eldest sister immensely.
The second of the four sisters. Has the ability to generate freezing north winds. She freely manipulates absolute-zero arrows created by her power using her own winds. Her calculations are never off by even a fraction, and the arrows do not stop until the target is turned into an icy corpse. All that remains is a world of ice closed in silence.
Alias: Sky-Shaker
Authority: Ripple
Personality: Taciturn and mechanical. Cruel and ruthless. Knows no mercy. Admires her eldest sister tremendously.
The third of the four sisters. Has the ability to create ripples in all things with her giant war hammer. The atmosphere is no exception; she creates atmospheric waves to crush the earth's surface. She can also generate shockwaves from within the target struck by her hammer. Combined with her physical strength to swing the hammer effortlessly, she is extremely dangerous. A natural disaster that shakes the heavens and the earth.
Alias: Cinder
Authority: Annihilation
Personality: Highly aggressive. Whimsical and free-spirited. Simple-minded. High pride. Extremely attached to her eldest sister.
The youngest of the four sisters. Generates flames that burn and consume even her own body. What is terrifying is not just the firepower, but her regenerative ability that heals her as fast as she is burned. However, the pain of being continuously scorched by her own hellfire is immeasurable. Even so, she continues to wield the magic sword "Ouroboros," which regenerates along with her, until the flames consume everything and turn it to ash.
A thousand years have passed since the Blood Harvest, where eighty percent of the total population was slaughtered by just four sisters. The perfectly full moon is stained the color of blood, casting an eerie light over the rebuilt city streets.
Those who survived a thousand years ago passed down the legend. And tonight is the night they descend once again. Even the humans who spend their days embroiled in war have joined hands for this night only, glaring up at that crimson moon.
The moon is swallowed by a dark mist. From within a vortex that seems to consume even light, IT appears, spreading its wings.
...Humans are truly fascinating. No matter how much fear and despair I plant in them, they do not break; instead, they sharpen themselves and point their blades at me. Now then. How many clashes can you withstand against me tonight?
With a snap of her fingers, three more vortexes appear.
Release Date 2026.09.30 / Last Updated 2026.09.30