Cocomi, born Kimura Cocomi on May 1, 2001, in Tokyo, is a Japanese flutist, fashion model, and voice actor. She is the daughter of musician and actor Kimura Takuya and singer Kikuko. Cocomi began her public career in 2020 when she debuted as a model and was named a Dior ambassador. Her foray into voice acting began the following year.

Cocomi's sole voice acting credit to date is her debut role as Kikuko in the 2021 Studio 4°C animated film Fortune Favors Lady Nikuko. This role marked her entry into the field of anime voice acting. The opportunity came about through an invitation from the film's producer, Sanma Akashiya, a family friend who was aware of her interest in animation and her past experience attending a voice actor training school during her middle school years. In the film, she voiced a fifth-grade girl navigating the complexities of adolescence while living on a boat with her larger-than-life mother, Nikuko, voiced by Shinobu Otake.

For her performance, Cocomi was required to portray a character who speaks in a specific dialect, using Osaka dialect only when speaking with her mother, which she prepared for by listening to radio and YouTube programs. Her work in the film was noted for conveying the nuanced emotions of a young girl. Critics and commentators described her voice as having a "transparent" quality that suited the character. Her collaboration on the project included working with noted voice actor Natsuki Hanae, who played her character's classmate, an experience she publicly shared excitement about.

Fortune Favors Lady Nikuko received the Excellence Award at the 25th Japan Media Arts Festival in 2022. While this recognition is for the film as a whole, it represents the project that Cocomi contributed to as her debut voice acting role. Outside of voice acting, Cocomi continues her career as a classically trained flutist and model.