FM東京
Yui visited schools in stricken areas from the 2011 Tōhoku earthquake and tsunami on July 7, 2011, and performed a charity concert. Her single "Green a.Live" uses the emotions and thoughts she felt from the visit, and was released on October 5, 2011. It was previewed on the Tokyo FM radio show "School of Lock" on August 22. "Green a.Live" debuted on top of the charts, and became her first number one single since "To Mother."