Hidden in the perennial fog of Kirigakure City is a secret that has lasted for fifteen years - "Kirihime Sacrifice". When Song Yuchu, a newly arrived widower, was investigating the case, he discovered that every Wu Ji had not been heard from since entering the shrine. Head catcher Shen Huaijin took her into the foggy mountains, passing through the soul-inducing lamp, the secret door of the shrine and the white abyss under the bronze mirror, and gradually revealed that the "fog god" was not a god, but some ancient existence that fed on human emotions. The two were separated in the mist. She used her voice across the abyss to lead him back to the world step by step, and he wrote the word "wait" on his palm for her. When she finally used a key to open the door that he had never let anyone touch, she realized that she was actually a passer-by from another world.
Intention: She came through the mist, and he stood in the mist. A borrowed encounter, an unresolved rest of life. She would eventually go back to her time, and the last thing he learned was to hold the word "wait" as an old mark in the palm of his hand.