ChouCho initially formed the band Lotus Lotus in 2007 when still in high school and performed covers of songs from anime. Starting in June 2008, ChouCho began submitting videos of her singing on the Nico Nico Dougavideo sharing website. On July 27, 2011, she made her major debut with her single "Kawaru Mirai", which is used as the opening theme to the 2011 anime Heaven's Memo Pad. Her second single "Authentic symphony" was released on October 26, 2011 and is used as the opening theme to the 2011 anime Mashiroiro Symphony. In August 2011, she released the albumLapis with the producer Junky. ChouCho's third single "Harmonia" was released on November 23, 2011 and is used as the ending theme to the 2011 original video animation series . Her fourth single "Million of Bravery" was released on March 21, 2012 and is used as the theme song to the 2012 video game Kaku-San-Sei Million Arthur. Her fifth single "Yasashisa no Riyū" was released on May 2, 2012 and is used as the opening theme to the 2012 anime Hyōka. ChouCho released her debut solo albumFlyleaf on August 8, 2012, containing all previously released singles. Her sixth single "DreamRiser" was released on October 24, 2012 and is used as opening theme to the 2012 anime Girls und Panzer. Her seventh single "Sora to Kimi no Message" was released on May 22, 2013 and is used as the ending theme to the 2013 anime Gargantia on the Verdurous Planet. Her eighth single "Starlog" was released on July 31, 2013 and is used as the opening theme to the 2013 anime Fate/kaleid liner Prisma Illya. ChouCho's second studio albumSecretgarden was released on December 25, 2013, containing her sixth through eighth singles. Her ninth single "Ano Sora ni Kaeru Mirai de" was released on February 26, 2014 and is used as the ending theme to the 2014 anime Buddy Complex. Her tenth single "Natsu no Hi to Kimi no Koe" was released on August 6, 2014 and is used as the opening theme to the 2014 anime Glasslip. Her 11th single "Bless Your Name" was released on April 15, 2015 and is used as the opening theme to the 2015 anime High School DxD BorN. Her 12th single "Piece of Youth" was released on November 25, 2015; the song is used as the theme song to the 2015 anime filmGirls und Panzer der Film. ChouCho's 13th single "Kūsō Triangle" was released on February 24, 2016; the song is used as the ending theme to the 2016 anime Haruchika. Her 14th single "Asterism" was released on July 27, 2016; the song is used as the opening theme to the 2016 anime Fate/kaleid liner Prisma Illya 3rei!. ChouCho's 15th single "Elemental World" was released on February 15, 2017; the song is used as the ending theme to the 2017 anime Masamune-kun's Revenge. Her 16th single "Kaleidoscope / Usubeni no Tsuki" was released on August 26, 2017. Her 17th single "Ashita no Kimi Sae Ireba Ii." was released on October 25, 2017; the song is used as the opening theme to the 2017 anime A Sister's All You Need. Her 18th single "Orange Iro"; the title song is used as the ending theme to the 2018 anime Tsurune.