Rin Aira, a native of Hiroshima Prefecture, was born on 24 May 2002.[1] Familiar with games and anime from an early age, she became interested in radio shows and events performed by voice actors after being influenced by voice actress Miyu Matsuki.[2] Eventually, she would decide to become a voice actress and participating in various auditions.[2]
In 2018, Aira was selected as the grand prize winner in the Miracle Seiyū Audition for Aikatsu Friends!,[2] in 2019, she made her voice acting debut in the series as Wakaba Harukaze.[3] Prior to her debut, she had no acting experience, and she decided to use a recording website to try voice acting.[3] She also performs as a singer as a member of Best Friends!, a unit assembled for the series.[4] In August 2019, she was cast as Raki Kiseki, the main character of Aikatsu Friends!'s spinoff Aikatsu on Parade!.[5] In November 2020, she was cast as Hip Hop Break in the next Aikatsu series, Aikatsu Planet!.[6]
In February 2020, she was cast as Nioi-san in Poccolies.[7] In March 2020, she was cast as Haru in Mitchiri Wanko! Animation.[8] In October 2020, she was cast as Anna in Kaoru no Taisetsu na Mono.[9] In November 2020, she was cast as Haruko in Tokyo Gambo.[10] In October 2022, she was cast as Fumi in Guardy Girls.[11]
In 2021, she won the Seiyu Award for Best Rookie Actress at the 15th Seiyu Awards.[12] After Aira began taking a career hiatus in December 2022 due to health problems, on 18 January 2023, Horipro announced that this hiatus would be indefinite due to her recovery.[13]