During December 2024, this developer enhanced Battle Pass navigation across the MaaRelease and MaaAssistantArknights repositories, focusing on improving navigability, discoverability, and consistency for YostarJP users. They refactored navigation logic and updated UI elements using Kotlin and C++, streamlining user access to Battle Pass features on Android platforms. To maintain system stability, they reverted experimental changes to the reclamation algorithm on Yostar servers, restoring predictable behavior. Their work emphasized code refactoring and algorithm optimization, aligning navigation flows across both repositories to reduce support friction and improve user engagement. The contributions reflect a methodical approach to mobile UI and backend stability.