Ayaka Kimura is a stage name used by the Japanese voice actress Yuka Inokuchi for roles in adult content, including original video animations and visual novels. Her mainstream career as Yuka Inokuchi is extensive and well-documented, providing a clear foundation for her professional profile.

Born on June 5, 1978, in Kurume, Fukuoka Prefecture, Inokuchi is affiliated with the talent agency Ken Production. She began her voice acting career in 1999 and has since become known for a wide variety of roles in anime, video games, and drama CDs. In October 2007, she changed the presentation of her primary stage name to its hiragana version, いのくちゆか.

Under her primary name, Inokuchi has voiced several prominent characters in mainstream anime. Some of her most notable roles include Uzume in Ai Yori Aoshi, Rin Kamishiro in Maburaho, Tabitha in The Familiar of Zero, Anju Maaka in Karin, Nao Yorihime in Yosuga no Sora, and Ai in Dragon Crisis!. She is also known for her long-running role as Zazie Rainyday in the Negima! franchise. Her work spans numerous other series, such as Koihime Musō, Yozakura Quartet, and Love, Election and Chocolate.

Alongside her anime work, Inokuchi has an extensive filmography in video games, particularly those for PC. It is in this medium, as well as in adult OVAs, that she frequently adopts the pseudonym Ayaka Kimura. Under this name, she has voiced characters in adaptations of visual novels, including Sui Kayama in the Inyōchū series, Yuu Fujikura in Princess Lover!, Mitsuki Kirishima in Four for Fourplay, and Hitomi Naruse in Double Duty Nurses. Other roles performed as Ayaka Kimura include Princess Lilia Eberwein in Himekishi Lilia, Yū Yagami in the Night Shift Nurses series, and characters in The Last Kunoichi, Anal Sanctuary, and Shin Ringetsu. This practice of using a different stage name for adult-oriented material is common in the Japanese voice acting industry. Besides Ayaka Kimura, Inokuchi has been credited under many other aliases for similar work, including Chiyoko Satō, Mirai Yamada, and Suzuharataruto.

While she does not have a single, exclusive collaboration with one particular director or studio, her consistent work across many titles produced by studios like MS Pictures and based on games from companies like Selen and bootUP! establishes her as a significant and active talent in the industry. Her career demonstrates a clear division between her mainstream work as Yuka Inokuchi and her adult-oriented performances as Ayaka Kimura and other pseudonyms.