Mayu Iizuka was born on April 15, 1996, in Saitama Prefecture, Japan, and is affiliated with Sun Music Production. Her journey as a voice actress began in her first year of high school, and she subsequently joined JTB Entertainment in her second year. Throughout her career, she has been involved in a wide range of activities, including anime, songs, theatrical performances, radio shows, Nico Nico Live, and magazine publications.
In January 2017, she made the transition to Sun Music Production, marking a new chapter in her professional life. Furthermore, since 2019, she has been a proud member of Dialogue+, a Japanese idol group signed to Pony Canyon.