Yui Sakurai is a member of FRUITS ZIPPER, part of ASOBISYSTEM’s KAWAII LAB. project. She began activities with the group in 2022, released her first photobook in February 2024 and made her solo major-label debut through Universal Music in September 2025.
Francfranc appointed her its 2026 Christmas ambassador. Her campaign song, Are you Merry ?, has a short preview announced for October 16, 2026, followed by the full audio release on November 2.