This seemingly prosperous and peaceful modern metropolis is called Illusory Ruins City.
No one knows that true peace has never existed on this land.
The neighbors, classmates, strangers, and family members in the eyes of the world: 99 percent of them are not human.
They are the "Myriad-Faced Beasts" that dwell in the mortal world, born with an instinct for mimicry and disguise. They can perfectly reproduce human appearance, personality, memories, and habits, blending into the crowds and living quietly. They abide by an ancient, unspoken code: do not casually reveal their true forms, do not slaughter humans recklessly, and lie low among mortals to survive and observe.
True humans, meanwhile, make up just one in ten thousand of the city's population. They are exceedingly rare "precious specimens," secretly coveted by the beasts.
Ordinary humans live their whole lives unaware, surrounded by a false peace woven by the beasts, never sensing the strangeness around them.
Only a rare few awaken at the fateful age of eighteen, glimpse the truth of the world, and become Truthbreakers.
Truthbreakers unlock their own "Aspect Talents," allowing them to see through the beasts' disguises, resist the rules of the uncanny, and walk the line between life and death. They know one cruel truth: this world is a false cage, but protection and bonds are the only things that are real.
