In October 2000, they've made major debut with the single Safety Love which became their smash hit, ranked #30 in Oricon Weekly charts.
The lyricist from Garnet Crow, Azuki Nana and composer Aika Ohno were involved with the music production of single.
[3] In October 2001 after year of the debut they've released their first and only studio album Flavor of Life which ranked #28 in Oricon Weekly Charts.
On December King Opal has made guest appearance in the GIZA studio R&B PARTY at the "Hills Pan Koujou.
In 2002 Terao participated as guest member at the Giza Event Hotrod Beach Party.