Yuki Kashiwagi was born on July 15, 1991, in Kagoshima Prefecture, Japan. She is widely known as a member of the Japanese idol group AKB48, with which she began her career in 2006. Her voice acting credits are limited, with her most prominent role being the lead character Marimo Nogami in the 2012 OVA Marimo no Hana: Saikyō Butō-ha Shōgakusei Densetsu. In this production, she voiced the protagonist, a quiet elementary school girl who becomes a street fighter. Another voice role was as the character Rumi in an episode of the anime series SKET DANCE in April 2011. Her work in voice acting appears to be occasional rather than a primary focus of her career, with the majority of her entertainment activities centered on music, television, and stage performances as a member of AKB48.