First Summer Uika
- Title: First Summer Uika
- Popularity: 2.684
- Known For: Acting
- Birthday: 1990-06-04
- Place of Birth: Ōsaka, Ōsaka, Japan
- Homepage: https://www.cubeinc.co.jp/archives/artist/firstsummeruika
- Also Known As: 初夏, Uika, ウイぽん, ファッサマ, BiS, BILLIE IDLE®