Kotoko is a Japanese J-pop musician, singer, and songwriter from Sapporo, Hokkaido. She began her singing career in 2000, debuting as a member of the trance group I've Sound and releasing her first mini-album Sora o Tobetara that same year. She was then signed to the Rondorobe record label from 2004 to 2010, under which she released the albums Hane, Garasu no Kaze, Uzu-Maki and Epsilon no Fune. She signed to Warner Home Video in 2011, and remained with the label until 2018. She is currently signed with NBCUniversal Entertainment Japan.
Kotoko composes and writes lyrics for numerous other song collections. She has contributed songs to numerous anime and video games including Please Teacher!, Maria-sama ga Miteru, Hourglass of Summer, Hayate the Combat Butler, Kannazuki no Miko, Shakugan no Shana, BlazBlue: Calamity Trigger, To Love-Ru, Accel World, Phantasy Star Online and Argevollen, among others.
From Wikipedia (https://en.wikipedia.org/wiki/Kotoko_(musician)) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/legalcode)