Since 2012, she modeled exclusively for the magazine Vivi, and in 2014, she made her acting debut as Megumi Kitagawa in the live-action film adaptation of Say I Love You.
Yagi was scouted at Actors Studio in Hokkaido Headquarters School recital and was set to debut in the girl group Teardrops but left in October 2006.
[2] She auditioned for Lyra in the Japanese dub of The Golden Compass and became a finalist in the competition, which led her to be scouted by Nicola.
[2] She modeled exclusively for the magazine beginning in the February 2008 issue and graduated in 2012 at the nicola Tokyo Open Day 2012.
[4] In 2014, Yagi appeared on the South Korean reality show We Got Married: Global Edition, where she was paired with Key from Shinee.