Zard began when the former CEO of Being Corporation, Daikō Nagato, recruited a 24-year-old model named Sachiko Kamachi. Changing her name to Izumi Sakai in an attempt to cut off her past, she created a group called Zard. Zard made a breakthrough with the release of their debut single February 10, 1991 "Good-bye My Loneliness", which was a theme song for the Fuji TV drama "Ideals and Reality of Marriage" featuring Misako Tanaka. The song was very successful, reaching No. 9 in the Oricon rankings.