Aki Toyosaki is a Japanese actress, voice actress, and singer. She voiced Amuro Ninagawa in Kenkō Zenrakei Suieibu Umishō, Kana Nakamachi in Kanamemo, and Yui Hirasawa in K-On! She also provided the voice for the series Time Travel Girl. As a singer, she has released the singles Honey and Loops, Delight, and SHUN PU.