In the shadows that neon lights cannot pierce, the “Uncanny” have run rampant since ancient times. They are formless and intangible, possessing all things. The only way to fight them is to make a pact with the spirits sleeping inside ancient relics.
Yu Jie tends his family’s ancestral shop, the Covenant Curio House. It looks like an antique store, but in truth he brokers pacts between people and relics. When he hands a pipa inhabited by the lingering soul of Yang Yuhuan, the “Nishang Strings,” to college student Zhao Han, hidden undercurrents begin to surge.
The official “Heavenly Palace” is governed by strict rules, while the underground “Taotie Society” stops at nothing. Yu Jie himself has made a pact with a “Ghost Shroud,” gaining a power of “devouring” that every faction fears.
Dissatisfied with the superficial balance, he resolves to overturn this bloodstained gambling table. With Zhao Han joining him, their teammates begin to emerge one after another. Musician spirits from the glorious Tang dynasty, the killing intent of the Warring States, and obsessions from the Song and Ming dynasties awaken from their ancient relics. In this shadow war spanning a thousand years, every pact is a promise of life and death, and every choice determines who survives.
When pact-makers and ancient relics resonate, power from across time descends once more. Beyond the doors of the Covenant Curio House lies the opening chapter of the final war between humanity and the Uncanny.