Yui Aragaki is a Japanese actress, singer, and model who has also performed voice acting roles in anime productions. Born on June 11, 1988, in Naha, Okinawa, she began her entertainment career as a model for the junior fashion magazine Nicola in 2001, winning the Grand Prix award at an audition. She transitioned to acting in 2005 and expanded into voice acting in 2006.

Her voice acting debut included two notable roles in 2006. She voiced the character Yoshino Fujieda in the anime television series Digimon Data Squad and its associated video game, Digimon World Data Squad. That same year, she lent her voice to the character Mirara in the animated film Keroro Gunsō the Super Movie, which is based on the popular Keroro Gunsō (Sgt. Frog) series.

While her on-screen acting career flourished with numerous leading roles in television dramas and films over the following years, her voice acting work has been sporadic. For a significant period, these two roles from 2006 remained her primary credited anime voice performances. More recently, she returned to voice acting in the 2024 anime film The Colors Within, providing the voice for the character Sister Hiyoshiko. Her work as a voice actor is a small but distinct part of a broader and highly successful career in the Japanese entertainment industry.