at the end signifies the specific set or performer released on that particular day. Content and Performer Details

The creation, distribution, and consumption of adult content are subject to a wide range of cultural, social, and legal considerations. In Japan, the adult entertainment industry is well-established, with strict regulations regarding content, distribution, and the protection of performers' rights. Identifiers like "10musume 020813-01" play a role in this ecosystem by aiding in the organization and dissemination of content while also potentially serving as markers for content warnings or age verification processes.