Yuka's got blue-silvery hair with straight bangs and it's down to the middle of her back. In normal world her hair is dark brown, but with the same hairstyle. Her eyes are ice-blue, and gentle with a melancholic feel. Her skin is really pale and she's got some of a princess-like face.
Yuka is from a broken home, with only a single mother with problems and two younger sisters. Therefore Yuka is cool and more or less emotionless. She's a very protecting older sister. The only person she ever opens up to is Hikari's older sister and Yuka's childhood friend Katsumi.
- Hikari Amamiya - Co-worker and fellow unit-member
- Akira Sugaya - Co-worker and fellow unit-member
- Odette Nishimura - Younger sister
- Odile Nishimura - Younger sister
- Katsumi Amamiya - Childhood friend and close friend
Yuka's personal song is Down By the Sea.
- Her zodiac-sign is Aquarius