Chiaki Mayumura is a Japanese idol singer and songwriter currently associated with Toy's Factory.
Mayumura has released 12 albums, with her three latest ones Gisshiri Haguki, Mejameja Monja and Gekidan Ogyarizumu charting on Oricon's Top 100. She calls herself a “track maker idol with playing guitar”. She is also the president of Kaishaja Naimon Co., Ltd.
