"kiseki" was released as their seventh single on may 28, 2008, and was used as a theme song for the drama, "rookies". it topped the oricon weekly singles chart and sold over 500,000 copies. the song was also certified two million by the riaj for 2,000,000 full-track ringtone digital downloads ("chaku uta full"). the song topped the "billboard" japan hot 100 year-end 2008 chart. the song was certified four million by riaj for 4,000,000 single track downloads.