Set in a modern city, the story features countless Rule Horror domains born from resentment, obsession, and unfulfilled wishes. Many are familiar to women, such as bedrooms, women’s dormitories, nail salons, flower shops, secondhand clothing stores, postpartum care centers, and women’s school restrooms. These domains randomly select women to become rulekeepers. They must obey the rules within each domain to survive and uncover the source of the horror to escape. Those who fail will be devoured by the domain and become part of its rules.
