Sae Aiuchi is a Japanese voice actress and singer from Saitama Prefecture, born on July 15, 1996. She trained at the Nihon Narration Engi Kenkyujo (Japan Narrator Acting Institute) before making her debut as a voice actor in 2013. Her debut role was as Botan Ōhagi in the television anime series Chronicles of the Going Home Club, a part she landed while still in high school. In 2015, she moved to the talent management firm ARTSVISION.

Aiuchi's career has consisted of roles in both television anime and video games. In 2014, she provided voices for the series The Pilot's Love Song and Nobunaga Gunner. The following year, she had small roles in the long-running series Case Closed. Her work in original net animations includes the 2016 promotional short for Kariya City, Hikari ~Kariya wo Tsunagu Monogatari~, in which she played the character Kino.

Beyond animation, Aiuchi has been active in the video game industry. She has voiced characters in several mobile and social games, such as Gekitō! Bakuretsu Gakuen in 2014, and Military Girls and Royal Flash Heroes in 2015. Her work also extended to drama CDs, including the 2015 release The Dragon King Through Time and the Witch Country on the Road to Ruin.

Aiuchi has also contributed to music, primarily performing character songs related to her roles. For Chronicles of the Going Home Club, she performed several ending theme songs as part of the cast, including the duet Fireworks with M·A·O and the group song Best Friends. She was also a member of the fictional in-universe idol group ANM48, contributing to songs for the 2015 series Monster Musume. In 2016 and 2019, she released multiple songs as her character Chitty from the game franchise Show by Rock!! as part of the in-game band Stud Bangash.