Hailing from Okinawa, Japan, Yūwa Higa sports long green hair in low twintails fastened by pearl-adorned hair ties, with center-parted banks framing blue eyes. Her uniform prominently features her signature red accent, complemented by a star-patterned bracelet identical to her groupmates'.

Yūwa embodies a peacemaking, well-rounded personality that establishes her as an older-sister figure within the group, especially toward Tsubaki. This dynamic cements her role as a stabilizing anchor during conflicts or challenges among members.

Her journey began with relocating from Okinawa to Harajuku's Takeshita St. Studio alongside Tsubaki for performer training, showcasing notable singing talent. The two share a deep, sisterly bond rooted in their Okinawan childhood, where Tsubaki coined her enduring nickname "Waa-chan." Within this relationship, Yūwa instinctively adopts the protective elder-sibling mantle.

Her story unfolds as a member of Lucky², a six-member unit training at Takeshita St. Studio. The group dedicates itself to rigorous audition preparations for St. Girls Square Academy—a prestigious institution for aspiring performers—with this shared ambition driving her narrative’s progression.