Kimiko Matsuzaka is a Japanese former entertainer known for a brief but notable career in the late 1980s and early 1990s, which included work as an adult video idol, television personality, and voice actress. Born in Kobe, Hyogo, Japan on October 21, 1969, her stage name is a combination of the names of two well-known actresses from the era, Matsuzaka Keiko and Ikegami Kimiko. Her physical attributes, particularly her bust measurement which was publicized as 110.7 centimeters, became a central part of her public persona and contributed to her widespread recognition.

Matsuzaka's career began in 1989 when she was scouted while attending junior college, leading to her debut in adult videos produced by Diamond映像. Her popularity rapidly extended beyond adult films, securing her regular appearances on mainstream television variety shows and serialized interviews in weekly magazines. She also ventured into television drama and released a single CD in 1990. Her foray into voice acting occurred during this same period of intense activity in 1990.

Her most frequently cited role in anime is as the voice of Kayo Asakura in the original adult animation (OAV) series Demon Beast Invasion, also known as Youju Kyoushitsu. This six-episode series, produced in 1990, is where she is credited with voicing the character of the unsuspecting girlfriend Kayo. Additional voice acting credits from the same year include roles in other adult anime titles such as Youju Kyoushitsu 2 and voice work for Fuji Television programs like Itoshi no Fabrio and Mandara Zukan. Her body of voice work is primarily contained within the year 1990 and is almost exclusively in the adult anime genre, reflecting the broader context of her career at that time.

Matsuzaka retired from the entertainment industry in the spring of 1991. Subsequent reports in magazines have detailed her life after retirement, noting that she worked as an office lady and later as a temporary staff member at a major advertising agency. There are no documented instances of recurring collaborations with specific directors or fellow voice actors within the anime industry, nor a body of work that would define a broader legacy as an anime voice actor. Her voice acting roles are a minor part of her overall, short-lived but highly publicized, career in Japanese entertainment.