[Strange stories about rules + suspense and supernatural + natural disasters + system + folk taboos + reasoning] Due to people's forgetfulness of folk taboos, the power of the seal continues to weaken, and weirdness suddenly comes... The elevator stopped three times on the 13th floor, but the door opened but there was no one. I remembered my grandfather's notes: "The elevator does not stop at midnight. If it stops, don't enter, close your eyes and recite the incantation." The fourth time the door opened, a woman in red stood in the corner with her head lowered... The news broadcast "Thirteen people disappeared in the city last night", and the protagonist realized - the strangeness was really coming...