Worked on the open-ani/animeko repository to improve the accuracy of episode airing information by addressing a bug that previously included special episodes in main story counts. Focused on backend development and data modeling, the solution involved refining the logic to ensure only main story episodes were considered, thereby enhancing data reliability for both users and analytics. Implemented comprehensive unit and regression tests in Kotlin to validate the new behavior and prevent future regressions. Collaborated with team members through co-authored commits, demonstrating a commitment to code quality and maintainability while making targeted, modular changes within the shared application data module.