In eighteenth-century Joseon, Ye Tae-seon is born under a curse carried from a violent past life: everyone he loves is destined to die before him. When an afterlife ledger known as Sayul Gye falls into the mortal world, he discovers that it records the remaining lifespan of every person around him—including Yubi, the woman he is desperate to save. Armed with forbidden knowledge, Tae-seon challenges ghosts, court intrigue, the rulers of the underworld, and the karmic law binding his fate to hers. Blending supernatural suspense, historical action, and a tragic romance spanning reincarnations, the novel turns the Eastern idea of karma into an epic struggle against death itself.