An office clerk at 765 Production, Kotori is a character in The Idolmaster.
Among the few things disclosed about her personality and character, Kotori is a little older than Miura Azusa (making her somewhere in her twenties), and despite not being an idol herself, loves to sing. She is typically regarded as a fujoshi, but also carries some himejoshi traits in the 2011 anime.
Her last name literally means "soundless" and her first name means "little bird".
Nobody here but us chickens!