In this world, when everyone reaches the age of twenty-five, a flower blooms on their body. The type, color, and location of the flower predict how you will die.
Yuan Zhi was twenty-three years old and opened a funeral agency. Strange flowers engraved with other people's names will appear on her body - whose name appears, whose death is near.
In the funeral parlor across the street, the undertaker Fang Suyang has a secret: he can make the flower of life on the deceased bloom again. The price is his life. For ten years, he hasn't stopped. Because he was supposed to die when he was eighteen years old, someone used a device called a "wishing machine" to save him. His life is borrowed.
One night, he knocked on her door: "I'm here to book a funeral for myself."
A black bud bloomed on her collarbone. Three words on the petals: Fang Suyang.
They were forced to track down the wishing machine, her father who had been pretending to be dead for twelve years, and her mother who had been missing for many years. Each layer of truth is uglier - the wishing machine is the inheritance of the Yuan family, the flower of words is the accounting book, and Fang Suyang was not resurrected by random, but was selected to be a container.
But there is one final layer of truth about that black flower. When her father "died" when she was twelve years old, she stood in the empty house and made a wish in her heart. The wishing machine heard it. It took eleven years to find someone and give that person to her.
Concept: In a world of equal exchange, what is love?