Nishiwaki Ayaka

Nishiwaki Ayaka (西脇綾香), also known as A~chan (あ～ちゃん), is a member of Perfume.

Biography
Nishiwaki was born and raised in Hiroshima, Japan, where she attended Actor’s School Hiroshima with friends and current Perfume members Kashino Yuka and Oomoto Ayano.

She formed Perfume in 2001 with Kashino and former member Kawashima Yuuka, who left shortly after to focus on her schoolwork. After discussing the issue with her mother, who believed that a three-piece group had more stage presence than a duo, Nishiwaki asked Oomoto to join the group.

Her younger sister, Nishiwaki Sayaka is a member of the group "9nine".