Born in Hiroshima on September 5th, 2002, Kairi Yagi moved to Tokyo alone at age 15 to pursue her dream, quickly gaining popularity on YouTube from song covers. Her singing as the main character Vivy from April 2021 TV-anime series "Vivy -Fluorite Eyeʼs Song-" was widely acclaimed, earning the No.1 spot on RecoChoku newcomers download charts for the first half of 2021. She marked her debut with her first original single, "Ripe Aster," on December 18, 2021.