Jin Ha worked on enhancing sponsor representation for the tskaigi2025-web-site repository by improving the display and accuracy of sponsor information. He added the Kaminashi logo to the sponsor list and updated the isTenantChecked logic to reflect Kaminashi’s sponsorship status, resulting in a cleaner user interface and more reliable sponsor data. Jin utilized TypeScript and front end development skills to integrate new assets and manage version-controlled updates. While the scope of work was focused on a single feature over one month, the changes contributed to better brand alignment and data integrity, supporting ongoing sponsor engagement for the project’s website.