Series Synopsis

Midnight whispers. Unseen entities. A war hidden between dimensions.
Yuka is an ordinary second-year high school student who spends his days alone, unnoticed by the world
around him.
But when night falls, he becomes something else entirely.
As mysterious creatures known as Yakshas begin appearing across the city, strange incidents spread
across the internet—stories of terrifying entities, disappearing people, and voices hidden within the
darkness.
While the world dismisses these incidents as hallucinations and rumors, Yuka secretly fights a hidden
war connected to ancient dimensions, corrupted souls, and a forgotten being feared even across hell
itself.
After saving two girls trapped between life and death, Yuka is forced to reveal the truth behind the
Yakshas… and the legendary existence known only as Zeo.
Some echoes should have remained forgotten