She can enter the final memories of people on the brink of death and rewrite their life's regrets. Changing one pivotal moment costs forty days of her lifespan; delving deeper doubles the cost. Through each client's story, she helps someone live again: changing a college entrance exam application, defying fate, making up for regrets, or accompanying a daughter through her final days. The price is a collapse of her lifespan at the organ level. But what she truly has to face is Shen Yuan's "death in a fire" ten years ago, the startling ledger of the Eternal Life Society collecting people's vital lifespans, and her own past: she has been reset three times and can barely remember her name or where she came from.