Kawayuka is a former member of the Jpop group Perfume. Before the group officially debuted in 2001, Kawayuka decided to leave the group in order to focus on her studies. She later joined another group called Risky. She then attempted a solo career as Yuka.
- Name: Kawayuka (かわゆか)
- Full name: Kawashima Yuuka (河島佑香)
- Birthdate: November 5th, 1988
- Birthplace: Hiroshima, Japan
- Blood Type: AB
- Favorite things: Talking with friends, chocolate,
- Best asset: Her voice
- When Perfume was first formed, Kawayuka was supposed to be Yuka-chan. However, it was hard to distingush her from Kashino Yuka so she took on the name Kawayuka and Kashino became Kashiyuka.