Developed and delivered the Bangumi Direct ID Lookup Search feature for the Kazumi repository, focusing on backend development and API integration using Dart. This enhancement introduced a new API endpoint that enables direct lookups of Bangumi catalog items by numeric ID, streamlining the search process for users. The implementation included conditional routing logic, so numeric-only search terms are processed through the new ID endpoint, while non-numeric terms continue to use the existing keyword-based search. This approach reduced lookup latency and improved search accuracy, laying the groundwork for more robust ID-based catalog workflows within the Kazumi project’s backend architecture.