Privacy Policy

Last Updated: September 19, 2026

Your privacy is extremely important to us. This Privacy Policy details how the Yotsu Discord Bot ("Yotsu", "we", "us", or "our") handles, processes, and stores data when you use the Bot or interact with our services.

1. Information We Collect

Yotsu operates under a strict, minimalist data policy. We only collect the technical information necessary to run and configure our services:

  • Guild Configurations: We store your Discord Guild ID and your server's module enabled/disabled states across all 11 features.
  • Alert Roles & Channels: If you configure Server Drop Ping or Peak Drop Ping, we store the target Discord Role ID and wishlist threshold. If you enable Peak Drop Forwarding, we store the target Channel ID and wishlist threshold.
  • User Wishlist Data: When you use /wishlist or /series_wishlist to track favorite characters or series, we store your Discord User ID mapped to internal character and series IDs in our database so Yotsu can ping you when cards drop.
  • OCR Hash Cache: We cache non-reversible perceptual image hashes and canonical names in a local SQLite database to accelerate Optical Character Recognition (OCR) and avoid redundant processing.
  • Strict Ephemeral Processing (No Message Logging): We do NOT log, store, read, or process your personal chat history, attachments, user profiles, or private messages. Yotsu only reads message content dynamically in memory to detect matching Karuta bot embeds. Once evaluated, message content is immediately discarded.

2. How We Use Data

We use the stored Guild IDs, user IDs, and configurations solely to verify your server and user settings and execute feature handlers (such as delivering drop warnings, formatting card codes, notifying you of tracked wishlist drops, and forwarding peak drops).

3. Data Sharing and Third Parties

We do not sell, rent, or trade your server configurations or user wishlist data with third-party advertising companies, data brokers, or external entities. All data is stored locally in our secure SQLite database and is never distributed.

4. Data Retention, Deletion & User Control

We respect your control over your data:

  • User Wishlist Control: You have complete control over your personal character and series wishlists. You can view, search, and delete any tracked item at any time using /wishlist and /series_wishlist. Deleting an entry immediately removes it from the database.
  • Guild Removal: If Yotsu is removed or kicked from your server, configuration records can be purged, effectively deleting all associated Guild ID records.
  • Immediate Overwrites: Changing toggles, thresholds, roles, or channels via /config instantly overwrites previously stored configurations.

5. Security

We deploy standard, secure database practices (using SQLite) to prevent unauthorized access or modification of configuration data. However, please remember that no method of transmission or electronic storage is 100% secure.

6. Contact Us

If you have questions, concerns, or requests regarding this Privacy Policy or your data, please contact the bot administrators directly in our support channels or via our GitHub repository.