As part of the AKB48 20th Anniversary project, this is official limited-edition merchandise in collaboration with "Wendy's First Kitchen," held from December 2, 2025, to January 7, 2026. This clear file is randomly given away when you purchase a flavor potato with a clear file at Wendy's First Kitchen locations. The item has been opened once for content verification and photography due to the random distribution. Item: Clear File A4 size Member: Yui Oguri / OGURI YUI Design: Iiwake Maybe costume