I. Information we collect
- Mobile phone number (for authentication with a one-time code)
- Name and display name
- Gender and interests (where provided by the user)
- Email (optional, to receive benefits)
- Date of birth (optional, for anniversary greetings only; used or retained for no other purpose)
- Conversation history with characters, to preserve conversation memory and improve response quality
- Technical device information (operating system, application version) for troubleshooting