Saegusa Yuuka

 (三枝夕夏) is a former singer and vocalist of U-ka saegusa IN db. She began her entertainment career as a multi-talent under the name AIKA in 2001. She stopped entertainment activities and returned to her hometown later that year, but wanted to continue pursuing a singing career. Her demo tape was discovered by producer Nagato Daiko, which led to her debut as U-ka saegusa IN db in 2002.

She now works as a businesswoman under her real name Oki Yuuka (隠岐有花), producing beauty products and salons.

Collaboration Singles

 * [2006.06.14] 100 Mono Tobira (100もの扉) (with Aiuchi Rina)
 * [2007.04.11] Nanatsu no Umi wo Wataru Kaze no You ni (七つの海を渡る風のように) (with Aiuchi Rina)