Kirigakure Seven Nights

The ancient town is hidden in fog and is filled with thick fog all year round. In order to find his missing sister Lin Wan, Lin Yan, an ancient book restorer, stepped into the stone tablet engraved with blood at the entrance of the town and fell into a "seven-day cycle": every seven nights the death knell rang, the thick fog swallowed everything, and he returned to the morning of his first entry with injuries. The cold rules are engraved on the stele: offer white cakes to the old Sophora japonica at night and avoid red ones; it is forbidden to touch the well and stream at night; it is forbidden to laugh in the theater after midnight; you must find three things, a bronze lamp, a broken sword, and an embroidered handkerchief, within seven days, otherwise you will be trapped in the fog forever. The same people trapped in the cycle have their own secrets: Su Heng, who holds the encrypted ancient book "Fog Hidden Continuing Examination"; Chen Meng, a retired armed policeman who carries a sapper shovel with a pattern similar to that of an engineer; Lao Gu, who often buries calligraphy leaves under a locust tree and claims to have studied ancient towns for 30 years. Every cycle is a test of human nature: betrayal, addiction to fog, and being swallowed up by obsession. Lin Yan discovered during the journey of life and death that his sister had become the "stand-in" for the town spirit. The truth of the cycle originated from the bloody secret of human sacrifice by the first generation town mayor. When the lamp burned to the blood of his relatives, the sword slashed the mirror image of himself, and the words embroidered in blood on the handkerchief revealed "Suppressing the spirit is obsession", Lin Yan understood: to break the cycle, he needed to fight against the ghosts in the fog, and he also needed to break the shackles of "cannot let go" in his heart. But the death knell sounded for the 29th time, and when faced with the phantom of his sister in the fog, he was faced with a choice: take her away, or let her escape? On the edge of trust and betrayal, obsession and letting go, can they break free from this century-old prison of despair?