Machico debuted as a voice actress in 2013 when she was cast as the character Tsubasa Ibuki in the mobile game The Idolmaster Million Live! in 2013. The following year, she released her first album titled Colors, which was released on June 11, 2014; the album peaked at number 64 on the Oricon weekly charts. Her second album Colors II -RML- was released on April 8, 2015; the album peaked at number 86 on the Oricon weekly charts. That same year, she voiced the character Sophia Mertesacker in the anime television series World Break: Aria of Curse for a Holy Swordsman. She made a cameo as herself in the 2015 anime television series Seiyu's Life!.
Machico performed the song "Fantastic Dreamer", which was used as the opening theme to the 2016 anime television series KonoSuba; the single for "Fantastic Dreamer" was released on January 27, 2016, and it peaked at number 42 on the Oricon weekly charts. Her next single, "Yūki no Tsubasa" (勇気のつばさ, Wings of Courage) was released on November 9, 2016; the title track is used as the second ending theme to the anime television series Age 12. She portrayed the character Serina Nishiyama in the 2016 anime television series Three Leaves, Three Colors. She opened her official fanclub ZO≒NA in December 2016. Her fourth single "Tomorrow" was released on February 1, 2017; the title track is used as the opening theme to the second season of KonoSuba. She was cast as the character Icea Mize Valgalis in the 2017 anime television series WorldEnd. Her fifth single "Kore Kara" (コレカラ, From Now On) was released on January 31, 2018; the title track is used as the opening theme to the anime series The Ryuo's Work Is Never Done!. She also played the role of Tokai Teio in the multimedia franchise Uma Musume Pretty Derby.
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"『キラキラ☆プリキュアアラモード』 第27話よりあらすじ&先行場面カットが到着! あおいが憧れる歌手・岬あやね役をMachicoさんが担当!". animate.jp (in Japanese). Archived from the original on October 6, 2021. Retrieved April 26, 2021. https://www.animatetimes.com/news/details.php?id=1502418926
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