Yui Makino is a Japanese voice actress, singer, and pianist born on January 19, 1986, in Tokyo. She is affiliated with the talent agency Amuse, Inc. Her career is notable for the deep connection between her formal training as a classical pianist and her work in both voice acting and music performance.

Makino's artistic foundation was established at a very young age. She began learning the piano when she was four years old. Her talent was recognized early by film director Shunji Iwai, and from the age of eight to seventeen, she performed piano solos on the soundtracks of his films Love Letter, All About Lily Chou-Chou, and Hana and Alice. She later graduated from the piano department of the Tokyo College of Music.

Her professional voice acting debut came in 2005 when she was cast as the heroine Sakura in the anime adaptation of the popular manga Tsubasa Chronicle. This role immediately established her as a leading voice actress. In the same year, she was discovered by the renowned composer Yoko Kanno, leading to her debut as a singer with the ending theme song Omna Magni for the anime Sousei no Aquarion. Her music career quickly gained recognition, particularly for her performances of theme songs for the Aria anime series. Her singles Undine and Euphoria, the opening themes for Aria the Animation and Aria the Natural respectively, both charted on the Oricon charts, and she has performed several solo concerts where she accompanies herself on the piano.

Throughout her career, Makino has taken on a wide variety of roles, demonstrating her vocal range. A partial list of her television anime roles includes Mari Sakuragi in Tokyo 24th Ward, Ugraine in Fantasy Bishōjo Juniku Ojisan to, Aroma Kurosu in Idol Time PriPara and other installments of the PriPara franchise, Mayu Sakuma in The Idolm@ster Cinderella Girls series, Ayuria in Monster Hunter Stories RIDE ON, Seira in Smile Down the Runway, Mio in Needless, Chika Kirishima in Farewell, My Dear Cramer, Yūka Sasahara in Encouragement of Climb, Super Fumina and Winning Fumina in Gundam Build Fighters: Battlogue, Honoka Kawai in The Girl Who Leapt Through Space, Aki in anohana: The Flower We Saw That Day, Hikaru in Hōkago no Pleiades, Amuri Kakyōin in Amuri in Star Ocean, Yura Yamato in Stella Women's Academy, High School Division Class C3, Kyouko Sakurami in Taisho Baseball Girls, and Tsubasa Tsubame in Samurai Harem. Her earliest credited voice acting role was the Sister in the short anime film Bavel no Book at the age of ten, showing her long-standing involvement in the industry.

Beyond television and film, Makino has contributed her voice to numerous original video animations, video games, and drama CDs. Her work in the Gundam franchise as Fumina Hoshino in Gundam Build Fighters Try and its sequels is another prominent example of her long-running roles. She has also been a guest of honor and performer at anime conventions and cultural events around the world, including appearances in France, the United States, Singapore, China, and Canada.