**Changelog**
**9.11**
- Added biting function, mutual purchase between main and sub-accounts, small accounts biting main accounts, and small accounts protecting main accounts.
**1.0b**
- Fixed several minor interface bugs, added the function to prevent main accounts from occupying sub-accounts' parking spots, and modified the mutual friend-adding algorithm.
**9.12 1.0c**
- Adjusted the mutual purchase algorithm between main and sub-accounts, improved the mutual friend-adding algorithm, added nicknames for slave trading, and fixed other minor issues.
**9.13 1.0d**
- Fixed CPU usage error caused by the biting function, added a parking blacklist, and implemented an auto-hide feature (boss key).