[Light Rules + Infinite Flow + Mild Horror + Absurdity + Nonhuman Female Lead]
Every night at nine, the world's order collapses.
At nine in the morning, everything returns to normal, and everyone forgets the previous night.
Only Ling Shu remembers.
But his only safe house is home to a terrifying woman.
She laughs at a TV with a black screen and makes the monsters in the hallway run for their lives.
She also hugs him and calls him her husband.
One night, Ling Shu is dragged into a strange realm called the Shadow World.
Here, names can kill, identities can devour, and every door leads to a new death trap.
He is human, yet must struggle to survive in the Shadow World.
She is not human, yet can only remain trapped in the real world, guarding their home on the twenty-second floor.
One searches for a way out inside. The other guards the way home outside.
And the entire Shadow World is waiting for him to return.